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 UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
 
FORM 10-Q
(Mark one)
x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended June 30, 2017.
o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from ________ to ________.

Commission File Number 001-37468
AppFolio, Inc.
(Exact name of registrant as specified in its charter)

Delaware
 
26-0359894
(State of incorporation or organization)
 
(I.R.S. Employer Identification No.)
50 Castilian Drive
Santa Barbara, California
 
93117
(Address of principal executive offices)
 
(Zip Code)
 (805) 364-6093
(Registrant’s telephone number, including area code)
N/A
(Former name, former address and former fiscal year, if changed since last report)
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. YES x NO o
Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). YES x NO o
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one):
Large accelerated filer
 
¨
 
Accelerated filer
x
 
 
 
 
 
Non-accelerated filer
 
¨  (Do not check if a smaller reporting company)
 
Smaller reporting company
¨
 
 
 
 
 
 
 
 
 
 
Emerging growth company
x
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act. x

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). YES o NO x

As of July 24, 2017, the number of shares of the registrant’s Class A common stock outstanding was 13,406,739 and the number of shares of the registrant’s Class B common stock outstanding was 20,505,590.

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TABLE OF CONTENTS
 
Section
 
Page No.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 


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CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS

This Quarterly Report on Form 10-Q for the fiscal quarter ended June 30, 2017, or Quarterly Report, includes “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended, or the Securities Act, and Section 21E of the Securities Exchange Act of 1934, as amended, or the Exchange Act, which statements are subject to considerable risks and uncertainties. Forward-looking statements include all statements that are not statements of historical facts contained in this Quarterly Report and can be identified by words such as “anticipates,” “believes,” “seeks,” “estimates,” “expects,” “intends,” “may,” “plans,” “potential,” “predicts, “projects,” “should,” “could,” “will,” “would” or similar expressions and the negatives of those expressions. In particular, forward looking statements contained in this Quarterly Report relate to, among other things, our future or assumed financial condition, results of operations, business forecasts and plans, capital needs and financing plans, research and product development plans, growth in the size of our business and number of customers, strategic plans and objectives, acquisitions and investments, and the application of accounting guidance. We caution you that the foregoing list may not include all of the forward-looking statements made in this Quarterly Report.

Forward-looking statements represent our management’s current beliefs and assumptions based on information currently available. Forward-looking statements involve numerous known and unknown risks, uncertainties and other factors that may cause our actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by the forward-looking statements. We discuss these risks and uncertainties in greater detail in the section entitled “Management’s Discussion and Analysis of Financial Condition and Results of Operations” of this Quarterly Report and
in the section entitled “Risk Factors” in our Annual Report on Form 10-K for the fiscal year ended December 31, 2016, or Annual Report, as well as in our other filings with the Securities and Exchange Commission or SEC. You should read this Quarterly Report, and the other documents we have filed with the SEC, with the understanding that our actual future results may be materially different from the results expressed or implied by these forward-looking statements.

Moreover, we operate in an evolving environment. New risks and uncertainties emerge from time to time and it is not possible for our management to predict all risks and uncertainties, nor can we assess the impact of all factors on our business or the extent to which any factor, or combination of factors, may cause actual future results to be materially different from those expressed or implied by any forward-looking statements.

Except as required by applicable law or the rules of the NASDAQ Stock Market, we assume no obligation to update any forward-looking statements publicly, or to update the reasons actual results could differ materially from those anticipated in these forward-looking statements, even if new information becomes available in the future.

We qualify all of our forward-looking statements by these cautionary statements.


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PART I. FINANCIAL INFORMATION
Item 1. Condensed Consolidated Financial Statements

APPFOLIO, INC.
CONDENSED CONSOLIDATED BALANCE SHEETS
(UNAUDITED)
(in thousands, except par values)
 
 
 
June 30,
2017
 
December 31,
2016
Assets
 
 
 
 
Current assets
 
 
 
 
Cash and cash equivalents
 
$
7,389

 
$
10,699

Investment securities—current
 
24,739

 
15,473

Accounts receivable, net
 
4,231

 
2,511

Prepaid expenses and other current assets
 
3,748

 
3,537

Total current assets
 
40,107

 
32,220

Investment securities—noncurrent
 
25,636

 
26,688

Property and equipment, net
 
6,674

 
7,077

Capitalized software, net
 
16,787

 
15,539

Goodwill
 
6,737

 
6,737

Intangible assets, net
 
2,405

 
3,105

Other assets
 
1,237

 
1,217

Total assets
 
$
99,583

 
$
92,583

Liabilities and Stockholders’ Equity
 
 
 
 
Current liabilities
 
 
 
 
Accounts payable
 
$
398

 
$
937

Accrued employee expenses
 
8,053

 
7,550

Accrued expenses
 
5,009

 
4,044

Deferred revenue
 
8,037

 
7,638

Other current liabilities
 
1,547

 
1,192

Total current liabilities
 
23,044

 
21,361

Other liabilities
 
1,374

 
1,540

Total liabilities
 
24,418

 
22,901

Commitments and contingencies (Note 6)
 

 

Stockholders’ equity:
 
 
 
 
Preferred stock, $0.0001 par value, 25,000 authorized and no shares issued and outstanding as of June 30, 2017 and December 31, 2016
 
—

 
—

Class A common stock, $0.0001 par value, 250,000 shares authorized as of June 30, 2017 and December 31, 2016; 13,319 and 11,691 shares issued and outstanding as of June 30, 2017 and December 31, 2016, respectively;
 
1

 
1

Class B common stock, $0.0001 par value, 50,000 shares authorized as of June 30, 2017 and December 31, 2016; 20,590 and 22,028 shares issued and outstanding as of June 30, 2017 and December 31, 2016, respectively;
 
3

 
3

Additional paid-in capital
 
148,716

 
146,692

Accumulated other comprehensive loss
 
(49
)
 
(51
)
Accumulated deficit
 
(73,506
)
 
(76,963
)
Total stockholders’ equity
 
75,165

 
69,682

Total liabilities and stockholders’ equity
 
$
99,583

 
$
92,583

The accompanying Notes to Condensed Consolidated Financial Statements are an integral part of these statements.

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APPFOLIO, INC.
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
(UNAUDITED)
(in thousands, except per share amounts)
 
 
Three Months Ended
June 30,
 
Six Months Ended
June 30,
 
2017
 
2016
 
2017
 
2016
Revenue
$
35,877

 
$
26,203

 
$
68,003

 
$
49,414

Costs and operating expenses:
 
 
 
 
 
 
 
Cost of revenue (exclusive of depreciation and amortization)
13,701

 
11,212

 
26,694

 
21,742

Sales and marketing
7,192

 
7,567

 
14,299

 
15,118

Research and product development
4,002

 
3,024

 
7,631

 
6,067

General and administrative
5,101

 
4,389

 
9,905

 
7,938

Depreciation and amortization
3,114

 
2,359

 
6,110

 
4,476

Total costs and operating expenses
33,110

 
28,551

 
64,639

 
55,341

Income (loss) from operations
2,767

 
(2,348
)
 
3,364

 
(5,927
)
Other (expense) income, net
(60
)
 
2

 
(88
)
 
(22
)
Interest income, net
120

 
95

 
222

 
119

Income (loss) before provision for income taxes
2,827

 
(2,251
)
 
3,498

 
(5,830
)
Provision for income taxes
30

 
13

 
41

 
37

Net income (loss)
$
2,797

 
$
(2,264
)
 
$
3,457

 
$
(5,867
)
 
 
 
 
 
 
 
 
Net income (loss) per common share:
 
 
 
 
 
 
 
Basic
$
0.08

 
$
(0.07
)
 
$
0.10

 
$
(0.18
)
Diluted
$
0.08

 
$
(0.07
)
 
$
0.10

 
$
(0.18
)
Weighted average common shares outstanding:
 
 
 
 
 
 
 
Basic
33,838

 
33,523

 
33,772

 
33,493

Diluted
34,928

 
33,523

 
34,879

 
33,493

The accompanying Notes to Condensed Consolidated Financial Statements are an integral part of these statements.


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APPFOLIO, INC.
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
(UNAUDITED)
(in thousands)


 
Three Months Ended
June 30,
 
Six Months Ended
June 30,
 
2017
 
2016
 
2017
 
2016
Net income (loss)
$
2,797

 
$
(2,264
)
 
$
3,457

 
$
(5,867
)
Other comprehensive income:
 
 
 
 
 
 
 
Changes in unrealized gains (losses) on investment securities
(19
)
 
73

 
2

 
373

Comprehensive income (loss)
$
2,778

 
$
(2,191
)
 
$
3,459

 
$
(5,494
)
The accompanying Notes to Condensed Consolidated Financial Statements are an integral part of these statements.


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APPFOLIO, INC.
CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY
(UNAUDITED)
(in thousands)


 
 
 
 
 
 
 
 
 
 
 
Accumulated
 
 
 
 
 
 
 
 
 
 
 
 
 
Additional
 
Other
 
 
 
 
 
Common Stock
 
Common Stock
 
Paid-in
 
Comprehensive
 
Accumulated
 
 
 
Class A
 
Class B
 
Capital
 
(Loss)/Income
 
Deficit
 
Total
 
Shares
 
Amount
 
Shares
 
Amount
 
 
 
 
 
 
 
 
Balance at December 31, 2016
11,691

 
$
1

 
22,028

 
$
3

 
$
146,692

 
$
(51
)
 
$
(76,963
)
 
$
69,682

Exercise of stock options
109

 
—

 
—

 
 
 
386

 
—

 
—

 
386

Stock-based compensation
—

 
—

 
—

 
—

 
2,942

 
—

 
—

 
2,942

Vesting of restricted stock units, net of shares withheld for taxes
72

 
—

 
—

 
—

 
(1,345
)
 
—

 
—

 
(1,345
)
Vesting of early exercised shares
—

 
—

 
—

 
—

 
41

 
—

 
—

 
41

Conversion of Class B stock to Class A stock
1,438

 
—

 
(1,438
)
 
—

 
—

 
—

 
—

 
—

Issuance of restricted stock awards
9

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Other comprehensive income
—

 
—

 
—

 
—

 
—

 
2

 
—

 
2

Net income
—

 
—

 
—

 
—

 
—

 
—

 
3,457

 
3,457

Balance at June 30, 2017
13,319

 
$
1

 
20,590

 
$
3

 
$
148,716

 
$
(49
)
 
$
(73,506
)
 
$
75,165

The accompanying Notes to Condensed Consolidated Financial Statements are an integral part of these statements.


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APPFOLIO, INC.
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
(UNAUDITED)
(in thousands)
 
 
 
Six Months Ended
June 30,
 
2017
 
2016
Cash from operating activities
 
 
 
Net income (loss)
$
3,457

 
$
(5,867
)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
 
 
 
Depreciation and amortization
6,110

 
4,476

Purchased investment premium, net of amortization
(104
)
 
95

Amortization of deferred financing costs
32

 
32

Loss on disposal of property and equipment
89

 
32

Stock-based compensation
2,716

 
1,555

Lease abandonment
—

 
60

Changes in operating assets and liabilities:

 

Accounts receivable
(1,721
)
 
(996
)
Prepaid expenses and other current assets
(212
)
 
(647
)
Other assets
(51
)
 
(92
)
Accounts payable
(319
)
 
(571
)
Accrued employee expenses
576

 
906

Accrued expenses
794

 
751

Deferred revenue
399

 
1,148

Other liabilities
100

 
1,495

Net cash provided by operating activities
11,866

 
2,377

Cash from investing activities
 
 
 
Purchases of property and equipment
(837
)
 
(3,161
)
Additions to capitalized software
(5,271
)
 
(5,159
)
Purchases of investment securities
(15,597
)
 
(16,685
)
Sales of investment securities
—

 
10,017

Maturities of investment securities
7,489

 
11,387

Purchases of intangible assets
(1
)
 
—

Net cash used in investing activities
(14,217
)
 
(3,601
)
Cash from financing activities
 
 
 
Proceeds from stock option exercises
386

 
153

Tax withholding for net share settlement
(1,345
)
 
—

Principal payments under capital lease obligations
—

 
(15
)
Proceeds from issuance of debt
59

 
57

Principal payments on debt
(59
)
 
(71
)
Net cash (used in) provided by financing activities
(959
)
 
124

Net decrease in cash and cash equivalents
(3,310
)
 
(1,100
)
Cash and cash equivalents
 
 
 
Beginning of period
10,699

 
12,063

End of period
$
7,389

 
$
10,963

 
 
 
 

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APPFOLIO, INC.
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
(UNAUDITED)
(in thousands)
 
 
 
Six Months Ended
June 30,
 
2017
 
2016
Noncash investing and financing activities
 
 
 
Purchases of property and equipment included in accounts payable and accrued expenses
$
223

 
$
172

Additions of capitalized software included in accrued employee expenses
385

 
459

Stock-based compensation capitalized for software development
345

 
177

The accompanying Notes to Condensed Consolidated Financial Statements are an integral part of these statements.

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APPFOLIO, INC.
NOTES TO CONDENSED CONSOLIDATED UNAUDITED FINANCIAL STATEMENTS
1. Nature of Business
AppFolio, Inc. (“we” or “AppFolio”) provides industry-specific, cloud-based software solutions for small and medium-sized businesses (“SMBs”) in the property management industry and solo practitioners and small law firms in the legal industry. We refer to solo practitioners and small law firms as SMBs in connection with our legal vertical in this Quarterly Report. Our platform is designed to be the system of record to automate essential business processes and the system of engagement to enhance business interactions between our customers and their clients and vendors. We also offer optional, but often mission-critical, Value+ services, which are seamlessly built into our core solutions.
2. Summary of Significant Accounting Policies
Basis of Presentation and Significant Accounting Policies
The accompanying unaudited Condensed Consolidated Financial Statements were prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information. Certain information and disclosures normally included in consolidated financial statements prepared in accordance with GAAP have been condensed or omitted. Accordingly, these Condensed Consolidated Financial Statements should be read in conjunction with our audited consolidated financial statements and the related notes included in our Annual Report filed with the SEC on February 27, 2017. The year-end condensed balance sheet was derived from our audited consolidated financial statements. Our unaudited interim Condensed Consolidated Financial Statements have been prepared on a basis consistent with that used to prepare our audited annual consolidated financial statements and include, in the opinion of management, all adjustments, consisting of normal and recurring items, necessary for the fair statement of the Condensed Consolidated Financial Statements. The operating results for the six months ended June 30, 2017, are not necessarily indicative of the results expected for the full year ending December 31, 2017.
Reclassifications
We reclassified certain amounts in our Condensed Consolidated Statements of Cash Flows within the cash from investing activities section in the prior year to conform to the current year's presentation.
Changes in Accounting Policies
Except as described below under Recently Adopted Accounting Pronouncements, there have been no significant changes in our accounting policies from those disclosed in our annual consolidated financial statements and the related notes included in our Annual Report.
Use of Estimates
The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the dates of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ materially from those estimates. On an ongoing basis, management evaluates its estimates based on historical data and experience, as well as various other factors that management believes to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying value of assets and liabilities that are not readily apparent from other sources.

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Net Income (Loss) per Share
The net income (loss) per common share was the same for our Class A and Class B common shares because they are entitled to the same liquidation and dividend rights and are therefore combined in the table below. The following table presents a reconciliation of our weighted average number of Class A and Class B common shares used to compute net income (loss) per share (in thousands):
 
 
Three Months Ended
June 30,
 
Six Months Ended
June 30,
 
 
2017
 
2016
 
2017
 
2016
Weighted average shares outstanding
 
33,871

 
33,610

 
33,809

 
33,591

Less: Weighted average unvested restricted shares subject to repurchase
 
33

 
87

 
37

 
98

Weighted average common shares outstanding; basic
 
33,838

 
33,523

 
33,772

 
33,493

 
 
 
 
 
 
 
 
 
Weighted average common shares outstanding; basic
 
33,838

 
33,523

 
33,772

 
33,493

Plus: Weighted average options, RSUs and restricted shares used to compute diluted net income per share
 
1,090

 
—

 
1,107

 
—

Weighted average common shares outstanding; diluted
 
34,928

 
33,523

 
34,879

 
33,493

Approximately 670,000 shares of performance based options ("PSOs") and performance based restricted stock units ("PSUs") are not included in the computations of diluted and anti-dilutive shares for the three and six month periods ended June 30, 2017, as they are considered contingently issuable upon the satisfaction of pre-defined performance measures and their respective performance measures have not been met.
For the three and six months ended June 30, 2016, we reported a net loss and therefore, all potentially dilutive common shares are anti-dilutive and have been excluded from the calculation of net loss per share. The following table presents the number of anti-dilutive common shares excluded from the calculation of weighted average number of shares used to compute diluted net income (loss) per share at the three and six months ended June 30, 2017 and 2016 (in thousands):
 
 
Three Months Ended
June 30,
 
Six Months Ended
June 30,
 
 
2017
 
2016
 
2017
 
2016
Options to purchase common stock
 
—

 
1,824

 
4

 
1,824

Unvested restricted stock awards
 
—

 
76

 
—

 
76

Unvested restricted stock units
 
8

 
475

 
22

 
475

Contingent restricted stock units (1)
 
15

 
49

 
15

 
49

Total shares excluded from net income (loss) per common share
 
23

 
2,424

 
41

 
2,424

(1) Included in the anti-dilutive shares above are fixed price restricted stock unit (“RSU”) commitments for which the number of shares has not been determined at the grant date. The number of RSU shares with a fixed price included in the table above are 15,000 and 49,000 shares at June 30, 2017 and 2016, respectively. The number of shares have been determined by dividing the fixed price commitment to issue shares in the future by the closing price of our stock as of the applicable reporting period date.
Recently Adopted Accounting Pronouncements
Under the Jumpstart our Business Startups Act (the “JOBS Act”), we meet the definition of an emerging growth company. We have irrevocably elected to opt out of the extended transition period for complying with new or revised accounting standards pursuant to Section 107(b) of the JOBS Act.
In March 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2016-09, Compensation - Stock Compensation (Topic 781), Improvements to Employee Share-Based Payment Accounting ("ASU 2016-09"), which amends and simplifies the accounting for share-based payment awards in three areas: (1) income tax consequences, (2) classification of awards as either equity or liabilities, and (3) classification on the statement of cash flows. ASU 2016-19 also provides an accounting policy election to account for forfeitures as they occur. We adopted this guidance on January 1, 2017. The impact to the Company’s consolidated financial statements was not material due to the full valuation allowance on

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our deferred tax assets. We have elected to continue to estimate forfeitures expected to occur to determine the amount of compensation cost to be recognized each period.
Recent Accounting Pronouncements Not Yet Adopted
In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) (“ASU 2014-09”), which requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. Subsequently, the FASB has issued the following standards related to ASU 2014-09: ASU No. 2016-08, Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (“ASU 2016-08”); ASU No. 2016-10, Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing (“ASU 2016-10”); ASU No. 2016-12, Revenue from Contracts with Customers (Topic 606): Narrow-Scope Improvements and Practical Expedients (“ASU 2016-12”); and ASU No. 2016-20, Technical Corrections and Improvements to Topic 606, Revenue from Contracts with Customers (“ASU 2016-20”). The Company must adopt ASU 2016-08, ASU 2016-10, ASU 2016-12 and ASU 2016-20 with ASU 2014-09 (collectively, the “new revenue standards”). The new revenue standards will be effective on January 1, 2018. Early adoption is permitted as of January 1, 2017. The Company will adopt the new revenue standards on January 1, 2018. The standard permits the use of either a retrospective or cumulative effect transition method. We have not yet selected a transition method and we are currently evaluating the effect that the new revenue standards will have on our consolidated financial statements and related disclosures. Based on our preliminary assessments, we do not expect there will be a material impact to our revenues upon adoption. We are continuing to evaluate the impact to our revenues related to our pending adoption of Topic 606 and our preliminary assessments are subject to change. While we are continuing to assess all potential impacts of the standard, we currently believe the most significant impact relates to recognition of costs related to obtaining customer contracts. Under the Company's current policy election under GAAP, sales commissions and other incremental costs to acquire contracts are expensed as incurred. Under the new revenue standards, such costs will be deferred and recognized over a period of time. We are still evaluating the new revenue standards and assessing the impact this identified difference in accounting treatment may have on our consolidated financial statements.

In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842) ("ASU 2016-02"). Under ASU 2016-02, an entity will be required to recognize right-of-use assets and lease liabilities on its balance sheet and disclose key information about leasing arrangements. ASU 2016-02 offers specific accounting guidance for a lessee, a lessor and sale and leaseback transactions. Lessees and lessors are required to disclose qualitative and quantitative information about leasing arrangements to enable a user of the financial statements to assess the amount, timing and uncertainty of cash flows arising from leases. For public companies, ASU 2016-02 is effective for annual reporting periods beginning after December 15, 2018, including interim periods within that reporting period, and requires a modified retrospective adoption, with early adoption permitted. We anticipate this standard will have a material impact on our consolidated financial statements. While we are continuing to assess all potential impacts of the standard, we currently believe the most significant impact relates to our accounting and reporting of our operating leases on our balance sheet.

In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments ("ASU 2016-13"), which amends the current accounting guidance and requires the measurement of all expected losses based on historical experience, current conditions and reasonable and supportable forecasts. This guidance amends the accounting for credit losses for available-for-sale securities and purchased financial assets with credit deterioration. ASU 2016-13 is effective for annual periods beginning after December 15, 2019, and interim periods within those annual periods. Early adoption is permitted for any interim or annual period after December 15, 2018. We do not expect the adoption of this guidance to have a material impact on our financial condition, results of operations, cash flows or disclosures.
    
In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments ("ASU 2016-15"), which provides cash flow statement classification guidance for debt prepayment or debt extinguishment costs; settlement of zero-coupon debt instruments or other debt instruments with coupon interest rates that are insignificant in relation to the effective interest rate of the borrowing; contingent consideration payments made after a business combination; proceeds from the settlement of insurance claims; proceeds from the settlement of corporate-owned life insurance policies, including bank-owned life insurance policies; distributions received from equity method investees; beneficial interests in securitization transactions; and separately identifiable cash flows and application of the predominance principle. ASU 2016-15 is effective for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. Early adoption is permitted, including adoption in an interim period. We have not determined the effect of this guidance on our statement of cash flows.
    
In October 2016, the FASB issued ASU No. 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory ("ASU 2016-16"), which changes the timing of when certain intercompany transactions are recognized within the

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provision for income taxes. ASU 2016-16 is effective on January 1, 2018. Early adoption is permitted. We have not determined the effect of this guidance on our financial condition, results of operations, cash flows or disclosures.

In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash ("ASU 2016-18"), which provides amendments to current guidance to address the classification and presentation of changes in restricted cash in the statement of cash flows. ASU 2016-18 is effective on January 1, 2018 and early adoption is permitted. We are still evaluating the effect of this guidance on our financial statements, although we expect that adoption will change the current presentation of restricted cash on our statement of cash flows as well as require additional disclosures to reconcile cash and cash equivalents per the balance sheet to cash and cash equivalents on the statement of cash flows.

In January 2017, the FASB issued ASU No. 2017-04, Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment ("ASU 2017-04"), which eliminates Step 2 from the goodwill impairment test. The annual, or interim, goodwill impairment test is performed by comparing the fair value of a reporting unit with its carrying amount. An impairment charge should be recognized for the amount by which the carrying amount exceeds the reporting unit’s fair value; however, the loss recognized should not exceed the total amount of goodwill allocated to that reporting unit. In addition, income tax effects from any tax deductible goodwill on the carrying amount of the reporting unit should be considered when measuring the goodwill impairment loss, if applicable. ASU 2017-04 also eliminates the requirements for any reporting unit with a zero or negative carrying amount to perform a qualitative assessment and, if it fails that qualitative test, to perform Step 2 of the goodwill impairment test. An entity still has the option to perform the qualitative assessment for a reporting unit to determine if the quantitative impairment test is necessary. ASU 2017-04 is effective for public entities for fiscal years beginning after December 15, 2019. Early adoption is permitted for interim or annual goodwill impairment tests performed on dates after January 1, 2017. We do not expect the adoption of this guidance to have a material impact on our financial condition, results of operations, cash flows or disclosures.

In March 2017, the FASB issued ASU No. 2017-08, Receivables-Nonrefundable Fees and Other Costs (Subtopic 310-20), Premium Amortization on Purchased Callable Debt Securities (“ASU 2017-08”). ASU 2017-08 shortens the amortization period for certain callable debt securities held at a premium. Specifically, ASU 2017-08 requires the premium to be amortized to the earliest call date. ASU 2017-08 does not require an accounting change for securities held at a discount; the discount continues to be amortized to maturity. For public companies, ASU 2017-08 is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. Early adoption is permitted, including adoption in an interim period. The amendments should be applied on a modified retrospective basis, with a cumulative-effect adjustment directly to retained earnings as of the beginning of the period of adoption. We do not expect the adoption of this guidance to have a material impact on our financial condition, results of operations, cash flows or disclosures since our current accounting policy is in accordance with ASU 2017-08.

In May 2017, the FASB issued ASU 2017-09, Compensation-Stock Compensation (Topic 718): Scope of Modification Accounting ("ASU 2017-09"). ASU 2017-09 clarifies when changes to the terms or conditions of a share-based payment award must be accounted for as modifications. The new guidance will reduce diversity in practice and result in fewer changes to the terms of an award being accounted for as modifications. Under ASU 2017-09, an entity will not apply modification accounting to a share-based payment award if the award’s fair value, vesting conditions and classification as an equity or liability instrument are the same immediately before and after the change. ASU 2017-09 will be applied prospectively to awards modified on or after the adoption date. The guidance is effective for annual periods, and interim periods within those annual periods, beginning after December 15, 2017. Early adoption is permitted. We do not expect the adoption of this guidance to have a material impact on our financial condition, results of operations, cash flows or disclosures.

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3. Investment Securities and Fair Value Measurements
Investment Securities
Investment securities classified as available-for-sale consisted of the following at June 30, 2017 and December 31, 2016 (in thousands):
 
June 30, 2017
 
Amortized Cost
 
Gross Unrealized Gains
 
Gross Unrealized Losses
 
Estimated Fair Value
Corporate bonds
$
34,880

 
$
10

 
$
(44
)
 
$
34,846

Agency securities
11,317

 
—

 
(20
)
 
11,297

Certificates of deposit
4,227

 
6

 
(1
)
 
4,232

Total available-for-sale investment securities
$
50,424

 
$
16

 
$
(65
)
 
$
50,375

 
December 31, 2016
 
Amortized Cost
 
Gross Unrealized Gains
 
Gross Unrealized Losses
 
Estimated Fair Value
Corporate bonds
$
30,492

 
$
9

 
$
(56
)
 
$
30,445

Agency securities
6,248

 
—

 
(20
)
 
6,228

Certificates of deposit
5,472

 
16

 
—

 
5,488

Total available-for-sale investment securities
$
42,212

 
$
25

 
$
(76
)
 
$
42,161

We had certain investment securities in an unrealized loss position at June 30, 2017 and December 31, 2016, and none of these securities have been in a continuous unrealized loss position for more than 12 months. These unrealized loss positions are considered temporary and there were no impairments considered "other-than-temporary" as it is more likely than not we will hold the securities until maturity or a recovery of the cost basis.
At June 30, 2017 and December 31, 2016, the contractual maturities of our investments did not exceed 36 months. The fair values of available-for-sale investments, by remaining contractual maturity, are as follows (in thousands):
 
June 30, 2017
 
December 31, 2016
 
Amortized Cost
 
Estimated Fair Value
 
Amortized Cost
 
Estimated Fair Value
Due in 1 year or less
$
24,757

 
$
24,739

 
$
15,475

 
$
15,473

Due after 1 year through 3 years
25,667

 
25,636

 
26,737

 
26,688

Total available-for-sale investment securities
$
50,424

 
$
50,375

 
$
42,212

 
$
42,161


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During the six months ended June 30, 2017 and 2016, we had sales and maturities (which includes calls) of investment securities, as follows (in thousands):
 
Six Months Ended June 30, 2017
 
Gross Realized Gains
 
Gross Realized Losses
 
Gross Proceeds from Sales
 
Gross Proceeds from Maturities
Agency securities
$
1

 
$
—

 
$
—

 
$
1,044

Corporate bonds
—

 
—

 
—

 
5,200

Certificates of deposit
—

 
—

 
—

 
1,245

 
$
1

 
$
—

 
$
—

 
$
7,489

 
Six Months Ended June 30, 2016
 
Gross Realized Gains
 
Gross Realized Losses
 
Gross Proceeds from Sales
 
Gross Proceeds from Maturities
Agency securities
$
1

 
$
—

 
$
3,006

 
$
7,557

Corporate bonds
5

 
—

 
5,011

 
—

Treasury bills
—

 
—

 
2,000

 
3,830

 
$
6

 
$
—

 
$
10,017

 
$
11,387

Interest income, net of the amortization and accretion of the premium and discount, for the three months ended June 30, 2017 and 2016, was $0.2 million and $0.1 million, respectively and $0.3 million and $0.2 million for the six months ended June 30, 2017 and 2016, respectively.
Fair Value Measurements
Recurring Fair Value Measurements
Financial assets and financial liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. The following tables summarize our financial assets measured at fair value on a recurring basis as of June 30, 2017 and December 31, 2016, by level within the fair value hierarchy (in thousands):
 
June 30, 2017
 
Level 1
 
Level 2
 
Level 3
 
Total Fair
Value
Cash equivalents:
 
 
 
 
 
 
 
Money market funds
$
199

 
$
—

 
$
—

 
$
199

Available-for-sale investment securities:
 
 
 
 
 
 
 
Corporate bonds
—

 
34,846

 
—

 
34,846

Agency securities
—

 
11,297

 
—

 
11,297

Certificates of deposit
4,232

 
—

 
—

 
4,232

Total
$
4,431

 
$
46,143

 
$
—

 
$
50,574


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December 31, 2016
 
Level 1
 
Level 2
 
Level 3
 
Total Fair
Value
Cash equivalents:
 
 
 
 
 
 
 
Money market funds
$
4,849

 
$
—

 
$
—

 
$
4,849

Available-for-sale investment securities:
 
 
 
 
 
 
 
Corporate bonds
—

 
30,445

 
—

 
30,445

Agency securities
—

 
6,228

 
—

 
6,228

Certificates of deposit
5,488

 
—

 
—

 
5,488

Total
$
10,337

 
$
36,673

 
$
—

 
$
47,010

The carrying amounts of cash equivalents, restricted cash, accounts receivable, accounts payable and accrued liabilities approximate fair value because of the short maturity of these items.
There were no changes to our valuation techniques used to measure asset and liability fair values on a recurring basis during the six months ended June 30, 2017. The valuation techniques for the items in the table above are as follows:
Cash and Cash Equivalents
As of June 30, 2017 and December 31, 2016, cash and cash equivalents include cash invested in money market funds. Fair value is based on market prices for identical assets.
Available-for-Sale Investment Securities
The fair value of our investment securities and certificates of deposit is based on pricing determined using inputs other than quoted prices that are observable either directly or indirectly such as yield curve, volatility factors, credit spreads, default rates, loss severity, current market and contractual prices for the underlying instruments or debt, broker and dealer quotes, as well as other relevant economic measures.
Non-Recurring Fair Value Measurements
Certain assets, including goodwill, intangible assets and our note receivable with SecureDocs are also subject to measurement at fair value on a non-recurring basis using Level 3 measurement when they are deemed to be impaired as a result of an impairment review. For the six months ended June 30, 2017 and 2016, no impairments were identified on those assets required to be measured at fair value on a non-recurring basis.
4. Internal-Use Software Development Costs
Internal-use software development costs were as follows (in thousands):
 
 
June 30,
2017
 
December 31,
2016
Internal use software development costs, gross
 
$
39,040

 
$
33,545

Less: Accumulated amortization
 
(22,253
)
 
(18,006
)
Internal use software development costs, net
 
$
16,787

 
$
15,539


Capitalized software development costs were $2.6 million and $3.0 million for the three months ended June 30, 2017 and 2016, respectively, and were $5.5 million and $5.4 million for the six months ended June 30, 2017 and 2016, respectively. Amortization expense with respect to software development costs totaled $2.2 million and $1.4 million for the three months ended June 30, 2017 and 2016, respectively, and $4.3 million and $2.7 million for the six months ended June 30, 2017 and 2016, respectively.


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Future amortization expense with respect to capitalized software development costs as of June 30, 2017, is estimated as follows (in thousands):
Years Ending December 31,
2017
 
$
4,447

2018
 
7,477

2019
 
4,198

2020
 
665

    Total amortization expense
 
$
16,787


5. Intangible Assets
Intangible assets consisted of the following as of June 30, 2017 and December 31, 2016 (in thousands):
 
 
June 30, 2017
 
 
Gross Carrying
Value
 
Accumulated
Amortization
 
Net Carrying
Value
Customer relationships
 
$
790

 
$
(471
)
 
$
319

Technology
 
4,811

 
(3,471
)
 
1,340

Trademarks
 
930

 
(478
)
 
452

Partner relationships
 
680

 
(510
)
 
170

Non-compete agreements
 
40

 
(30
)
 
10

Domain names
 
273

 
(261
)
 
12

Patents
 
285

 
(183
)
 
102

 
 
$
7,809

 
$
(5,404
)
 
$
2,405


 
 
December 31, 2016
 
 
Gross Carrying
Value
 
Accumulated
Amortization
 
Net Carrying
Value
Customer relationships
 
$
790

 
$
(392
)
 
$
398

Technology
 
4,811

 
(3,070
)
 
1,741

Trademarks
 
930

 
(416
)
 
514

Partner relationships
 
680

 
(397
)
 
283

Non-compete agreements
 
40

 
(23
)
 
17

Domain names
 
273

 
(241
)
 
32

Patents
 
284

 
(164
)
 
120

 
 
$
7,808

 
$
(4,703
)
 
$
3,105

Amortization expense for the three months ended June 30, 2017 and 2016 was $0.4 million and for the six months ended June 30, 2017 and 2016 was $0.7 million.


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As of June 30, 2017, estimated future amortization of intangible assets was as follows (in thousands):
Years Ending December 31,
2017
 
$
680

2018
 
928

2019
 
352

2020
 
259

2021
 
124

Thereafter
 
62

    Total amortization expense
 
$
2,405

6. Commitments and Contingencies
Lease Obligations
As of June 30, 2017, we had operating lease obligations of approximately $10.2 million through 2022. We recorded rent expense of $0.5 million for the three months ended June 30, 2017 and 2016, and $1.0 million for the six months ended June 30, 2017 and 2016.

In February 2017, we signed a lease amendment relating to the property located at 50 Castilian Drive in Santa Barbara, California, our corporate headquarters. This amendment extends the term from February 2018 to December 2021. The total commitment under this lease extension is $3.1 million. All of the other terms and conditions of the lease agreement remain the same.
Line of Credit
We are party to a Credit Agreement with Wells Fargo, as administrative agent, and the lenders that are parties thereto (as amended, the “Credit Agreement”). Under the terms of the Credit Agreement, the lenders made available to us a $25.0 million revolving line of credit (the “Revolving Facility”). Borrowings under the Revolving Facility are subject to the satisfaction of customary conditions. The Revolving Facility matures on October 9, 2020; however, we can make payments on, and cancel in full, the Revolving Facility at any time without premium or penalty.
As of June 30, 2017 and December 31, 2016, there was no outstanding balance under the Credit Agreement and we are in compliance with the financial covenants under the Revolving Facility.
Insurance
We have a wholly owned subsidiary, Terra Mar Insurance Company, Inc. (“Terra Mar”), which was established to provide our customers with the option to purchase tenant liability insurance. If our customers choose to use our insurance services, they are issued an insurance policy underwritten by our third-party service provider. The policy has a limit of $100,000 per incident for each insured residence. We have entered into a reinsurance agreement with our third-party service provider and, as a result, we assume a 100% quota share of the tenant liability insurance provided to our customers through our third-party service provider. Included in cost of revenue we accrue for reported claims and an estimate of losses incurred but not reported by our property manager customers, as we bear the risk related to claims. Our liability for reported claims and incurred but not reported claims as of June 30, 2017 and December 31, 2016 was $0.5 million and $0.3 million, respectively, and is included in Other current liabilities on the Condensed Consolidated Balance Sheets.
Included in Other assets as of June 30, 2017 and December 31, 2016, are $1.0 million and $1.2 million, respectively, of deposits held with a third party related to requirements to maintain collateral for our insurance services.

Litigation
From time to time, we may become subject to certain legal proceedings, including without limitation claims and/or litigation matters, arising in the ordinary course of business. We are not currently a party to any such legal proceedings, nor are we aware of any pending or threatened litigation, that would have a material adverse effect on our business, operating results, cash flows or financial condition should such proceedings be resolved unfavorably.

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Indemnification
In the ordinary course of business, we may provide indemnification of varying scope and terms to customers, investors, directors and officers with respect to certain matters, including, but not limited to, losses arising out of our breach of any applicable agreements, services to be provided by us, or intellectual property infringement claims made by third parties. These indemnification provisions may survive termination of the underlying agreement and the maximum potential amount of future payments we could be required to make under these indemnification provisions may not be subject to maximum loss clauses. The maximum potential amount of future payments we could be required to make under these indemnification provisions is indeterminable. We have never paid a material claim, nor have any legal claims been brought against us in connection with these indemnification arrangements. As of June 30, 2017 and December 31, 2016, we had not accrued a liability for these indemnification arrangements because we have determined that the likelihood of incurring a payment obligation, if any, in connection with these indemnification arrangements is not probable or reasonably possible and the amount or range of amounts of any such liability is not reasonably estimable.

7. Stock-Based Compensation
Stock Options
A summary of our stock option activity for the six months ended June 30, 2017, is as follows (number of shares in thousands): 
 
 
Number of
Shares
 
Weighted
Average
Exercise
Price per Share
 
Weighted
Average
Remaining
Contractual Life
in Years
Options outstanding as of December 31, 2016
 
1,718

 
$
8.75

 
8.2
Options granted
 
172

 
24.77

 
 
Options exercised
 
(109
)
 
3.53

 
 
Options cancelled/forfeited
 
(26
)
 
9.96

 
 
Options outstanding as of June 30, 2017
 
1,755

 
$
10.63

 
8.1
During the six months ended June 30, 2017, we granted PSOs to purchase up to 172,000 shares of our Class A common stock. The PSOs have a weighted average exercise price of $24.77 per share. Vesting of the PSOs is based on the achievement of pre-established performance metrics for the year ended December 31, 2019, and continued employment throughout the performance period. Of the PSOs granted during 2017, 132,000 shares would vest based upon the maximum payout of 165% when the 2019 free cash flow performance metric meets the maximum achievement of 150%. For performance at 100% of the targeted 2019 free cash flow metric, approximately 61% of the PSOs would vest. For performance at 80% of the targeted metric, approximately 48% of the PSOs would vest. For performance below 80% of the 2019 targeted metric, no PSOs would vest, all previously recognized compensation expense for the PSOs would be reversed, and no compensation expense would be recognized. The remaining 40,000 PSOs granted during 2017 have a pre-established adjusted gross margin target for 2019. PSOs tied to the gross margin performance metric have two levels of vesting, with 50% vesting based upon the achievement of 110% of the targeted amount and the remaining 50% vesting upon the achievement of 115% of the targeted amount. If the 110% performance target is not met, no shares will vest and all previously recognized expense for those PSOs would be reversed and no compensation expense would be recognized.
Included in the options outstanding as of June 30, 2017, are 500,000 PSOs granted in 2016, which vest based on the achievement of a pre-established free cash flow performance metric for the years ended December 31, 2017 and 2018. The number of PSOs granted in 2016 related to the performance metrics for the years ended December 31, 2017 and 2018, assumed achievement of the performance metric at the maximum level, which is 150% of the targeted performance metric. For performance at 100% of the targeted metric, approximately 67% of the PSOs would vest. For performance at 80% of the targeted metric, approximately 53% would vest. For performance below 50% of the 2017 targeted metric or 80% of the 2018 targeted metric, no PSOs would vest, all previously recognized compensation expense for PSOs would be reversed, and no compensation expense would be recognized.
During the six months ended June 30, 2017, 247,000 of the PSOs vested based on the achievement of 148% of the pre-established free cash flow performance metric for the year ended December 31, 2016, and 3,000 PSOs were cancelled as a result of the PSOs being granted at 150% of the target metric. During the year ended December 31, 2016, $1.0 million of expense was recognized related to the PSOs that vested during the six months ended June 30, 2017.
We recognize expense for the PSOs based on the grant date fair value of the PSOs that we determine are probable of vesting. Adjustments to compensation expense are made each period based on changes in our estimate of the number of PSOs that

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are probable of vesting. Our stock-based compensation expense for stock options, including the PSOs, for the three months ended June 30, 2017 and 2016, was $697,000 and $578,000, respectively, and $1.2 million and $865,000 for the six months ended June 30, 2017 and 2016, respectively.
The fair value of stock options granted is estimated on the date of grant using the Black-Scholes option-pricing model. The following table summarizes information relating to our stock options granted during the three and six months ended June 30, 2017 and 2016: 
 
 
Three Months Ended
June 30,
 
Six Months Ended
June 30,
 
 
2017
 
2016
 
2017
 
2016
Stock options granted (in thousands)
 
40

 
500

 
172

 
750

Weighted average exercise price per share
 
$
27.95

 
$
13.43

 
$
24.77

 
$
12.85

Weighted average grant-date fair value per share
 
$
10.52

 
$
5.2

 
$
9.58

 
$
4.85

Weighted average Black-Scholes model assumptions:
 
 
 
 
 
 
 
 
Risk-free interest rate
 
1.95
%
 
1.53
%
 
2.02
%
 
1.45
%
Expected term (in years)
 
6.3

 
6.1

 
6.4

 
5.9

Expected volatility
 
34
%
 
38
%
 
35
%
 
37
%
Expected dividend yield
 
—

 
—

 
—

 
—


As of June 30, 2017, the total estimated remaining stock-based compensation expense for unvested stock options, including the PSOs, was $3.0 million, which is expected to be recognized over a weighted average period of 1.8 years.
Restricted Stock Units
A summary of activity in connection with our RSUs for the six months ended June 30, 2017, follows (number of shares in thousands):
 
 
Number of Shares
 
Weighted- Average Grant Date Fair Value per Share
Unvested as of December 31, 2016
 
496

 
$
13.34

Granted
 
291

 
24.71

Vested
 
(123
)
 
12.18

Forfeited
 
(34
)
 
15.44

Unvested as of June 30, 2017
 
630

 
$
18.71


During the six months ended June 30, 2017, we granted a total of 291,000 RSUs: 178,000 RSUs vest annually over four years; 100,000 PSUs vest based upon achievement of a pre-established free cash flow performance metric for the year ended December 31, 2019, and continued employment throughout the performance period; and 13,000 PSUs were granted and vested as a result of the attainment of the 2016 performance metric. The number of PSUs granted, as included in the above table, assumes achievement of the performance metric at 100% of the targeted performance metric. The actual number of shares to be issued at the end of the performance period will range from 0% to 165% of the initial target awards. For performance at 150% of the targeted metric in 2019, 165% of the PSUs would vest. For performance below 80% of the targeted metric in 2019, no PSUs would vest and no compensation expense would be recognized, and all previously recognized compensation expense for PSUs would be reversed.
During the six months ended June 30, 2017, 41,000 of the PSUs vested based on the achievement of 148% of the pre-established free cash flow performance metric for the year ended December 31, 2016, and an additional 13,000 PSUs were granted and vested as a result of the attainment of the 2016 performance metric as approved by our Board of Directors. During the year ended December 31, 2016, $479,000 of expense was recognized related to the PSUs vested during the six months ended June 30, 2017.
Included in the unvested RSUs as of June 30, 2017, are 56,000 PSUs granted in 2016, which vest based on the achievement of a pre-established free cash flow performance metric for the years ended December 31, 2017 and 2018, and continued employment throughout the performance period. The number of PSUs granted in 2016 related to the performance metrics for the years ended December 31, 2017 and 2018, assumes achievement of the performance metric at 100% of the targeted performance metric. The actual number of shares to be issued at the end of the performance period will range from 0% to 150% of the initial target awards.

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For performance at 150% of the targeted metric, 150% of the PSUs would vest. For performance below 50% of the targeted metric for 2017 or 80% of the targeted metric for 2018, no PSUs would vest and no compensation expense would be recognized, and all previously recognized compensation expense for PSUs would be reversed.
We recognize expense for the PSUs based on the grant date fair value of the PSUs that we determine are probable of vesting. Adjustments to compensation expense are made each period based on changes in our estimate of the number of PSUs that are probable of vesting. Our stock-based compensation expense for the RSUs and PSUs for the three months ended June 30, 2017 and 2016, was $1.0 million and $527,000, respectively, and $1.6 million and $638,000 for the six months ended June 30, 2017 and 2016, respectively.
As of June 30, 2017, the total remaining estimated stock-based compensation expense for the RSUs and PSUs was $10.0 million, which is expected to be recognized over a weighted average period of 2.8 years.
Restricted Stock Awards
A summary of activity in connection with our restricted stock awards for the six months ended June 30, 2017, follows (number of shares in thousands): 
 
 
Number of
Shares
 
Weighted-
Average
Grant Date
Fair Value per Share
Unvested as of December 31, 2016
 
46

 
$
8.55

Granted
 
9

 
33.30

Vested
 
(36
)
 
9.54

Forfeited
 
—

 
—

Unvested as of June 30, 2017
 
19

 
$
18.40

We have the right to repurchase any unvested restricted stock awards. Restricted stock awards vest over a four-year period for employees and a one-year period for non-employee directors. We recognized stock-based compensation expense for restricted stock awards of $88,000 and $114,000 for the three months ended June 30, 2017 and 2016, respectively, and $189,000 and $229,000 for the six months ended June 30, 2017 and 2016, respectively.
As of June 30, 2017, the total remaining stock-based compensation expense for unvested restricted stock awards with a repurchasing right was $353,000 which is expected to be recognized over a weighted average period of 1.0 year.

8. Income Taxes
Our effective tax rate differs from the U.S. Federal statutory rate of 34% primarily because our previously reported losses have been offset by a valuation allowance due to uncertainty as to the realization of those losses.
For the three and six months ended June 30, 2017, we recorded income tax expense of $30,000 and $41,000, respectively on pre-tax income of $2.8 million and $3.5 million, respectively, for an effective tax rate of 1.1% and 1.2%, respectively. The income tax expense is based on our payments of state minimum taxes, alternative minimum tax ("AMT") (net of available AMT credit), and the amortization of tax deductible goodwill that is not an available source of income to realize the deferred tax asset.
For the three and six months ended June 30, 2016, we recorded income tax expense of $13,000 and $37,000, respectively on pre-tax losses of $2.3 million and $5.8 million, respectively for an effective tax rate of 0.6%. The income tax expense is based on our payments of state minimum taxes and the amortization of tax deductible goodwill that is not an available source of income to realize the deferred tax asset.

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9. Revenue and Other Information
The following table presents our revenue categories for the three and six months ended June 30, 2017 and 2016 (in thousands): 
 
 
Three Months Ended
June 30,
 
Six Months Ended
June 30,
 
 
2017
 
2016
 
2017
 
2016
Core solutions
 
$
13,906

 
$
10,572

 
$
27,012

 
$
20,335

Value+ services
 
20,537

 
14,399

 
38,301

 
26,653

Other
 
1,434

 
1,232

 
2,690

 
2,426

Total revenues
 
$
35,877

 
$
26,203

 
$
68,003

 
$
49,414


Core solutions revenue includes our subscription fees which are designed to scale to the size of our customers’ businesses. We recognize subscription revenue ratably over the terms of the subscription agreements, which typically range from one month to one year. Revenue from subscription services is impacted by a number of factors, including the change in the number and type of our customers, the size and needs of our customers’ businesses and our customer renewal rates. 
Value+ services revenue includes revenue from subscriptions or usage-based fees. Subscription Value+ services include website hosting services and contact center services. Usage-based Value+ services include fees for electronic payment processing, applicant screening services, our tenant liability insurance program, collections, and online vacancy advertising services. Revenue from Value+ services is impacted by a number of factors, including the number of new and existing customers that adopt and utilize our Value+ service, the size and needs of our customers and our customer renewal rates.

Other revenue includes revenue from one-time services related to on-boarding customers to our core solutions, website design services and online vacancy advertising services offered to legacy RentLinx customers.

Our revenue is generated primarily from U.S. customers. All of our property and equipment is located in the U.S.


10. Subsequent Events
Brian Donahoo has notified the Company of his intention to retire from his position as President and Chief Executive Officer, and as a member of the Board of Directors, both effective as of August 8, 2017.  Following his retirement, Mr. Donahoo will continue to serve as an employee of the Company through December 31, 2017 for the principal purpose of assisting the Company in the orderly transition of his roles and responsibilities.  In connection with Mr. Donahoo’s retirement, the Company and Mr. Donahoo have entered into a Resignation Agreement and General Release of Claims.
The Board of Directors has appointed Jason Randall as President and Chief Executive Officer, and has elected Mr. Randall to serve as a Class III director, both effective as of August 8, 2017.

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Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations

The following discussion and analysis of our financial condition and results of operations should be read together with our Condensed Consolidated Financial Statements and the related notes included elsewhere in this Quarterly Report and in our Annual Report. This discussion and analysis contains forward-looking statements that are based on our current expectations and reflect our plans, estimates and anticipated future financial performance. These statements involve numerous risks and uncertainties. Our actual results may differ materially from those expressed or implied by these forward-looking statements as a result of many factors, including those set forth in the section entitled “Risk Factors” in Part I, Item 1A of our Annual Report. Please also refer to the section of this Quarterly Report entitled "Cautionary Note Regarding Forward-Looking Statements" for additional information.
Overview
AppFolio is a provider of industry-specific, cloud-based software solutions for SMBs in the property management and legal industries. We were formed in 2006 with a vision to revolutionize the way that SMBs grow and compete by enabling their digital transformation.

Our platform is designed to be the system of record to automate essential business processes and the system of engagement to enhance business interactions between our customers and their clients and vendors. Our property management software provides small and medium-sized property managers with an end-to-end solution to many of their business needs, enabling them to manage their portfolio of properties quickly and easily in a single, integrated environment. Our legal software provides solo practitioners and small law firms with a streamlined practice and case management solution, allowing them to manage much of their case load within a single system. We also offer optional, but often mission-critical, Value+ services, which are seamlessly built into our core solutions.
We launched our first product, APM, a property management solution, in 2008. Recognizing that our customers would benefit from additional mission-critical services that they can purchase as needed, we launched our first Value+ service in 2009 by offering website design and hosting services to our property manager customers. Our websites give our customers a professional online presence and serve as the hub for our system of engagement. In 2010, we commenced the roll out of our electronic payments platform with the introduction of ACH payment processing and, in 2011, we launched resident screening as additional Value+ services. In 2012, we introduced our tenant liability insurance program as a further Value+ service. Also in 2012, after completing our market validation process, we decided to enter the legal market. We expedited our time-to-market by acquiring MyCase, a legal practice and case management solution, and we leveraged our AppFolio Business System, including our experience gained in the property management vertical, to advance our software solution in the legal vertical. In 2013, we extended our website design and hosting services to our law firm customers and expanded our electronic payments platform for property managers by allowing residents to pay rent by Electronic Cash Payment and credit or debit card. In 2014, we launched an additional Value+ service for our property manager customers with our contact center to resolve or route incoming maintenance requests. In 2016, we launched Premium Leads and Debt Collection Services as additional Value+ services to our property manager customers to assist with filling vacancies and collecting their tenants' unpaid rent. In 2016, we also expanded our electronic payments platform in the legal vertical by allowing clients of our legal customers to pay their legal bills by credit card, debit card, or ACH. Through our disciplined market validation approach and ongoing investment in product development, we continuously update our software solutions through new and innovative core functionality and Value+ services, as well as assess opportunities in adjacent markets and new verticals.
We have focused on growing our revenue by increasing the size of our customer base, retaining customers, introducing new or expanded Value+ services, increasing the adoption and utilization of our Value+ services by new and existing customers, and increasing the number of units under management. We define our customer base as the number of customers subscribing to our core solutions, exclusive of free trials. We intend to continue to invest in revenue growth opportunities over time in our current markets, adjacent markets, and new verticals.

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Customer count and property manager units under management is summarized in the table below:
 
June 30,
 
March 31,
 
December 31,
 
September 30,
 
June 30,
 
March 31,
 
2017
 
2016
Property manager
10,820

 
10,468

 
10,038

 
9,612

 
9,275

 
8,816

Property manager units under management (in millions)
2.93

 
2.83

 
2.68

 
2.53

 
2.41

 
2.30

Law firm
8,913

 
8,676

 
8,135

 
7,799

 
7,349

 
6,834

We have invested in growth in a disciplined manner across our organization, and intend to continue to do so. These investments to grow our business will continue to increase our costs and operating expenses on an absolute basis. Many of these investments will occur in advance of our realization of revenue or any other benefit and will make it difficult to determine if we are allocating our resources efficiently. We expect cost of revenue, research and product development expense, sales and marketing expense, and general and administrative expense to decrease as a percentage of revenue over the long term as revenue increases and we gain additional operating leverage in our business. As a result of this increased operating leverage, we expect our operating margins will improve over the long term.
To date, we have experienced rapid revenue growth due to our investments in research and product development, sales and marketing, customer service and support, and infrastructure. During the six months ended June 30, 2017, we have derived more than 90% of our revenue from our property management solution.
We have managed, and plan to continue to manage, our business towards the achievement of long-term growth that we believe will positively impact long-term stockholder value, and not towards the realization of short-term financial or business metrics, or short-term stockholder value.
Key Components of Results of Operations
Revenue
We charge our customers on a subscription basis for our core solutions and certain of our Value+ services. Our subscription fees are designed to scale to the size of our customers’ businesses. We recognize subscription revenue ratably over the terms of the subscription agreements, which typically range from one month to one year. We generally invoice our customers for subscription services in monthly, quarterly or annual installments, typically in advance of the subscription period. Revenue from subscription services is impacted by a number of factors, including the change in the number and type of our customers, the size and needs of our customers’ businesses, our customer renewal rates, and the level of adoption of our Value+ subscription services by new and existing customers.
We also charge our customers usage-based fees for using certain Value+ services, although fees for electronic payment processing are generally paid by the clients of our customers. Usage-based fees are charged on a flat fee per transaction basis with no minimum usage commitments. We recognize revenue for usage-based services in the period the service is rendered. We generally invoice our customers for usage-based services on a monthly basis for services rendered in the preceding month. Revenue from usage-based services is impacted by a number of factors, including the number of new and existing customers that adopt and utilize our Value+ services, the size and needs of our customers and our customer renewal rates.
We also offer our assistance to our customers with on-boarding to our core solutions, as well as website design services. These services are generally purchased as part of a subscription agreement, and are typically performed within the first several months of the arrangement. We generally invoice our customers for other services in advance of the services being completed. We recognize revenue for these other services upon completion of the related service. We also generate revenue from legacy RentLinx customers by providing services that allow these customers to advertise rental houses and apartments online. Revenue derived from customers using the RentLinx services outside of our property manager core solution platform is being recorded under Other revenue.

Costs and Operating Expenses
Cost of Revenue. Cost of revenue consists of personnel-related costs (including salaries, incentive-based compensation, benefits, and stock-based compensation) for our employees focused on customer service and the support of our operations, platform infrastructure costs (such as data center operations and hosting-related costs), fees paid to third-party service providers, payment processing fees, and allocated shared costs. We typically allocate shared costs across our organization based on headcount within the applicable part of our organization. Cost of revenue excludes amortization of capitalized software development costs and acquired technology. We intend to continue to invest in customer service and support, and the expansion of our technology infrastructure as we grow the number of our customers and roll out additional Value+ services. We also intend to expand our Value+ offerings over time, which will impact cost of revenue both in absolute dollars and overall percentage of revenue.
Sales and Marketing. Sales and marketing expense consists of personnel-related costs (including salaries, sales commissions, incentive-based compensation, benefits, and stock-based compensation) for our employees focused on sales and marketing, costs associated with sales and marketing activities, and allocated shared costs. Marketing activities include advertising, online lead generation, lead nurturing, customer and industry events, and the creation of industry-related content and collateral. Sales commissions and other incremental costs to acquire customers and grow adoption and utilization of our Value+ services by new and existing customers are expensed as incurred. We focus our sales and marketing efforts on generating awareness of our software solutions, creating sales leads, establishing and promoting our brands, and cultivating an educated community of successful and vocal customers. We intend to continue to invest in sales and marketing as we grow to increase the size of our customer base and increase the adoption and utilization of Value+ services by our new and existing customers.

Research and Product Development. Research and product development expense consists of personnel-related costs (including salaries, incentive-based compensation, benefits, and stock-based compensation) for our employees focused on research and product development, fees for third-party development resources, and allocated shared costs. Our research and product development efforts are focused on enhancing the ease of use and functionality of our existing software solutions by adding new core functionality, Value+ services and other improvements, as well as developing new products and services. We capitalize the portion of our software development costs that meets the criteria for capitalization. Amortization of capitalized software development costs is included in depreciation and amortization expense. We intend to continue to invest in research and product development as we continue to introduce new core functionality, roll out new Value+ services, develop new products and services, and expand into adjacent markets and new verticals.
General and Administrative. General and administrative expense consists of personnel-related costs (including salaries, incentive-based compensation, benefits, and stock-based compensation) for employees in our executive, finance, information technology, or IT, human resources, corporate development, legal and administrative organizations. In addition, general and administrative expense includes fees for third-party professional services (including consulting, legal and audit services), other corporate expenses, and allocated shared costs. We intend to incur incremental general and administrative costs associated with supporting the growth of our business.
Depreciation and Amortization. Depreciation and amortization expense includes depreciation of property and equipment, amortization of capitalized software development costs and amortization of intangible assets. We depreciate or amortize property and equipment, software development costs and intangible assets over their expected useful lives on a straight-line basis, which approximates the pattern in which the economic benefits of the assets are consumed. As we continue to invest in our research and product development organization and the development or acquisition of new technology, we expect to have increased capitalized software development costs and incremental amortization.

Interest Income (Expense). Interest income includes interest earned on investment securities, amortization and accretion of the premium and discounts paid from the purchase of investment securities, interest earned on notes receivable and on cash deposited within our bank accounts. Interest expense includes interest paid on outstanding borrowings under our Credit Agreement.

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Results of Operations
The following table sets forth our results of operations for the periods presented in dollars (in thousands) and as a percentage of revenue:
 
 
Three Months Ended
June 30,
 
Six Months Ended
June 30,
 
 
2017
 
2016
 
2017
 
2016
 
 
Amount
 
%
 
Amount
 
%
 
Amount
 
%
 
Amount
 
%
Consolidated Statements of Operations Data:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Revenue
 
$
35,877

 
100.0
 %
 
$
26,203

 
100.0
 %
 
$
68,003

 
100.0
 %
 
$
49,414

 
100.0
 %
Costs and operating expenses:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Cost of revenue (exclusive of depreciation and amortization) (1)
 
13,701

 
38.2

 
11,212

 
42.8

 
26,694

 
39.3

 
21,742

 
44.0

Sales and marketing (1)
 
7,192

 
20.0

 
7,567

 
28.9

 
14,299

 
21.0

 
15,118

 
30.6

Research and product development (1)
 
4,002

 
11.2

 
3,024

 
11.5

 
7,631

 
11.2

 
6,067

 
12.3

General and administrative (1)
 
5,101

 
14.2

 
4,389

 
16.7

 
9,905

 
14.6

 
7,938

 
16.1

Depreciation and amortization
 
3,114

 
8.7

 
2,359

 
9.0

 
6,110

 
9.0

 
4,476

 
9.1

Total costs and operating expenses
 
33,110

 
92.3

 
28,551

 
109.0

 
64,639

 
95.1

 
55,341

 
112.0

Income (loss) from operations
 
2,767

 
7.7

 
(2,348
)
 
(9.0
)
 
3,364

 
4.9

 
(5,927
)
 
(12.0
)
Other (expense) income, net
 
(60
)
 
(0.2
)
 
2

 
—

 
(88
)
 
(0.1
)
 
(22
)
 
—

Interest income, net
 
120

 
0.3

 
95

 
0.4

 
222

 
0.3

 
119

 
0.2

Income (loss) before provision for income taxes
 
2,827

 
7.9

 
(2,251
)
 
(8.6
)
 
3,498

 
5.1

 
(5,830
)
 
(11.8
)
Provision for income taxes
 
30

 
0.1

 
13

 
—

 
41

 
0.1

 
37

 
0.1

Net income (loss)
 
$
2,797

 
7.8
 %
 
$
(2,264
)
 
(8.6
)%
 
$
3,457

 
5.1
 %
 
$
(5,867
)
 
(11.9
)%

(1) Includes stock-based compensation expense as follows (in thousands):

 
 
Three Months Ended
June 30,
 
Six Months Ended
June 30,
 
 
2017
 
2016
 
2017
 
2016
Costs and operating expenses:
 
 
 
 
 
 
 
Cost of revenue (exclusive of depreciation and amortization)
 
$
209

 
$
138

 
$
338

 
$
183

Sales and marketing
 
210

 
130

 
330

 
172

Research and product development
 
182

 
104

 
298

 
155

General and administrative
 
1,018

 
720

 
1,750

 
1,045

Total stock-based compensation expense
$
1,619

 
$
1,092

 
$
2,716

 
$
1,555




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Comparison of the Three and Six Months Ended June 30, 2017 and 2016
Revenue
 
 
Three Months Ended
June 30,
 
Change
 
Six Months Ended
June 30,
 
Change
 
 
2017
 
2016
 
Amount
 
%
 
2017
 
2016
 
Amount
 
%
 
 
(dollars in thousands)
Core solutions
 
$
13,906

 
$
10,572

 
$
3,334

 
32
%
 
$
27,012

 
$
20,335

 
$
6,677

 
33
%
Value+ services
 
20,537

 
14,399

 
6,138

 
43
%
 
38,301

 
26,653

 
11,648

 
44
%
Other
 
1,434

 
1,232

 
202

 
16
%
 
2,690

 
2,426

 
264

 
11
%
Total revenues
 
$
35,877

 
$
26,203

 
$
9,674

 
37
%
 
$
68,003

 
$
49,414

 
$
18,589

 
38
%

Revenue increased $9.7 million, or 37%, for the three months ended June 30, 2017 compared to the three months ended June 30, 2016, mainly reflecting a 17% increase in the number of property manager customers. The overall increase was mostly attributable to revenue from Value+ services, which increased by $6.1 million, or 43%. The increase in Value+ services was mainly driven by increased usage of our electronic payments platform and screening services by a larger property manager customer base and an increase in units under management of 22%. We also experienced growth in our other Value+ services, including tenant liability insurance, customer contact center, website hosting services and premium lead services within our Value+ services. The overall increase in revenue was also attributable to growth in revenue from our Core solutions of $3.3 million, or 32%, driven by growth in the number of our customers and units under management.
Revenue increased $18.6 million, or 38%, for the six months ended June 30, 2017 compared to the six months ended June 30, 2016, mainly reflecting a 17% increase in the number of property manager customers. The overall increase was mostly attributable to revenue from Value+ services, which increased by $11.6 million, or 44%. The increase in Value+ services was mainly driven by increased usage of our electronic payments platform and screening services by a larger property manager customer base and increase in the number of units under management. We also experienced revenue growth in our other Value+ services, including tenant liability insurance, customer contact center, website hosting services and premium lead services within our Value+ services. The overall increase in revenue was also attributable to growth in revenue from our Core solutions of $6.7 million, or 33%, driven by growth in the number of our customers and units under management.
For the six months ended June 30, 2017 and 2016, we derived more than 90% of our revenue from our property manager customers.
Cost of Revenue (Exclusive of Depreciation and Amortization)
 
 
Three Months Ended June 30,
 
Change
 
Six Months Ended
June 30,
 
Change
 
 
2017
 
2016
 
Amount
 
%
 
2017
 
2016
 
Amount
 
%
 
 
(dollars in thousands)
Cost of revenue (exclusive of depreciation and amortization)
 
$
13,701

 
$
11,212

 
$
2,489

 
22
%
 
$
26,694

 
$
21,742

 
$
4,952

 
23
%
Percentage of revenue
 
38.2
%
 
42.8
%
 
 
 
 
 
39.3
%
 
44.0
%
 
 
 
 
Cost of revenue (exclusive of depreciation and amortization) increased $2.5 million, or 22%, for the three months ended June 30, 2017 compared to the three months ended June 30, 2016. The increase was primarily due to increased third-party costs of $1.7 million driven by increased Value+ services revenue and increased personnel-related costs of $0.5 million due to the continued growth of our business.
As a percentage of revenue, cost of revenue (exclusive of depreciation and amortization) improved to 38.2% from 42.8% for the three months ended June 30, 2017 compared to the three months ended June 30, 2016. This improvement was primarily driven by our ability to increase revenue with a more moderate increase in personnel-related costs, and an improvement in pricing with our third-party service providers as we continue to grow.
Cost of revenue (exclusive of depreciation and amortization) increased $5.0 million, or 23%, for the six months ended June 30, 2017 compared to the six months ended June 30, 2016. The increase was primarily due to increased third-party costs of $3.3 million driven by increased Value+ services revenue and increased personnel-related costs of $1.2 million due to the continued growth of our business.

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As a percentage of revenue, cost of revenue (exclusive of depreciation and amortization) improved to 39.3% from 44.0% for the six months ended June 30, 2017 compared to the six months ended June 30, 2016. This improvement was primarily driven by our ability to increase revenue with a more moderate increase in personnel-related costs, and an improvement in pricing with our third-party service providers as we continue to grow.
Sales and Marketing
 
 
Three Months Ended June 30,
 
Change
 
Six Months Ended
June 30,
 
Change
 
 
2017
 
2016
 
Amount
 
%
 
2017
 
2016
 
Amount
 
%
 
 
(dollars in thousands)
Sales and marketing
 
$
7,192

 
$
7,567

 
$
(375
)
 
(5
)%
 
$
14,299

 
$
15,118

 
$
(819
)
 
(5
)%
Percentage of revenue
 
20.0
%
 
28.9
%
 
 
 
 
 
21.0
%
 
30.6
%
 
 
 
 
Sales and marketing expense decreased by $0.4 million or 5% for the three months ended June 30, 2017 compared to the three months ended June 30, 2016. This decrease resulted from $0.2 million lower personnel-related costs and $0.1 million lower allocated and other costs as we gain efficiencies in our expenses relative to our revenue growth.
    
Sales and marketing expense decreased $0.8 million, or 5%, for the six months ended June 30, 2017 compared to the six months ended June 30, 2016. The decrease was mainly the result of a decrease in personnel related costs of $0.4 million and a decrease in allocated and other costs of $0.3 million as we gain efficiencies in our expenses relative to revenue growth.
Research and Product Development
 
 
Three Months Ended June 30,
 
Change
 
Six Months Ended June 30,
 
Change
 
 
2017
 
2016
 
Amount
 
%
 
2017
 
2016
 
Amount
 
%
 
 
(dollars in thousands)
Research and product development
 
$
4,002

 
$
3,024

 
$
978

 
32
%
 
$
7,631

 
$
6,067

 
$
1,564

 
26
%
Percentage of revenue
 
11.2
%
 
11.5
%
 
 
 
 
 
11.2
%
 
12.3
%
 
 
 
 
Research and product development expense increased $1.0 million, or 32%, for the three months ended June 30, 2017 compared to the three months ended June 30, 2016. The increase was the result of an increase in personnel-related costs, net of capitalized software development costs, of $1.0 million, due to headcount growth within our research and product development organizations.
    
Research and product development expense increased $1.6 million, or 26%, for the six months ended June 30, 2017 compared to the six months ended June 30, 2016. The increase was primarily the result of an increase in personnel-related costs, net of capitalized software development costs, of $1.7 million, due to headcount growth within our research and product development organizations.
General and Administrative
 
 
Three Months Ended
June 30,
 
Change
 
Six Months Ended
June 30,
 
Change
 
 
2017
 
2016
 
Amount
 
%
 
2017
 
2016
 
Amount
 
%
 
 
(dollars in thousands)
General and administrative
 
$
5,101

 
$
4,389

 
$
712

 
16
%
 
$
9,905

 
$
7,938

 
$
1,967

 
25
%
Percentage of revenue
 
14.2
%
 
16.7
%
 
 
 
 
 
14.6
%
 
16.1
%
 
 
 
 
General and administrative expense increased $0.7 million, or 16%, for the three months ended June 30, 2017 compared to the three months ended June 30, 2016. The increase was primarily the result of increased personnel-related costs of $0.9 million due to headcount growth and incentive-based compensation.

General and administrative expense increased $2.0 million, or 25%, for the six months ended June 30, 2017 compared to the six months ended June 30, 2016. The increase was primarily the result of an increase in personnel-related costs of $2.2 million due to headcount growth and incentive-based compensation.

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Depreciation and Amortization
 
 
Three Months Ended June 30,
 
Change
 
Six Months Ended June 30,
 
Change
 
 
2017
 
2016
 
Amount
 
%
 
2017
 
2016
 
Amount
 
%
 
 
(dollars in thousands)
Depreciation and amortization
 
$
3,114

 
$
2,359

 
$
755

 
32
%
 
$
6,110

 
$
4,476

 
$
1,634

 
37
%
Percentage of revenue
 
8.7
%
 
9.0
%
 
 
 
 
 
9.0
%
 
9.1
%
 
 
 
 
Depreciation and amortization expense increased $0.8 million, or 32%, for the three months ended June 30, 2017 compared to the three months ended June 30, 2016. The increase was the result of increased amortization expense of $0.8 million associated with increased capitalized software development balances.

Depreciation and amortization expense increased $1.6 million, or 37%, for the six months ended June 30, 2017 compared to the six months ended June 30, 2016. The increase was the result of increased amortization expense of $1.5 million associated with higher capitalized software development balances and increased depreciation expense of $0.1 million related to capital purchases.
Interest Income, net
 
 
Three Months Ended June 30,
 
Change
 
Six Months Ended June 30,
 
Change
 
 
2017
 
2016
 
Amount
 
%
 
2017
 
2016
 
Amount
 
%
 
 
(dollars in thousands)
Interest income
 
$
120

 
$
95

 
$
25

 
26
%
 
$
222

 
$
119

 
$
103

 
87
%
Percentage of revenue
 
0.3
%
 
0.4
%
 
 
 
 
 
0.3
%
 
0.2
%
 
 
 
 
Interest income, net, remained relatively flat for the three months ended June 30, 2017 compared to the three months ended June 30, 2016. For the six months ended June 30, 2017 compared to the six months ended June 30, 2016, interest income increased $0.1 million and is primarily the result of higher investment security balances in the more recent period.
Liquidity and Capital Resources
Cash and Cash Equivalents
As of June 30, 2017, our principal sources of liquidity were cash and cash equivalents and investment securities, which had an aggregate balance of $57.8 million.
Working Capital
As of June 30, 2017, we had working capital of $17.1 million, compared to working capital of $10.9 million as of December 31, 2016. The increase in our working capital was primarily due to an increase in the current portion of investment securities and accounts receivable and a decrease in accounts payable, offset by a decrease in our cash and cash equivalents and increases in accrued expenses and accrued employee expenses from the continued growth of our business.
Revolving Facility
As of June 30, 2017, we had a $25.0 million revolving line of credit, which we refer to as the Revolving Facility, under the terms of the Credit Agreement with Wells Fargo, as administrative agent, and the lenders and parties thereto. As of June 30, 2017 and December 31, 2016, we had no outstanding balance and were in compliance with the financial covenants under the Revolving Facility.

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Table of Contents

Liquidity Requirements
We believe that our existing cash and cash equivalents, investment securities, available borrowing capacity of $25.0 million under the Revolving Facility, and cash generated from ongoing operations will be sufficient to meet our working capital and capital expenditure requirements for at least the next 12 months.
Capital Requirements
Our future capital requirements will depend on many factors, including the continued market acceptance of our software solutions, the change in the number of our customers, the adoption and utilization of our Value+ services by new and existing customers, the timing and extent of the introduction of new core functionality and Value+ services in our existing markets and verticals, the timing and extent of our expansion into adjacent markets or new verticals and the timing and extent of our investments across our organization. In addition, we may in the future enter into arrangements to acquire or invest in complementary businesses, services, technologies or intellectual property rights, although we have no present plans with respect to any acquisitions or investments.
Cash Flows
The following table summarizes our cash flows for the periods indicated (in thousands):
 
 
Six Months Ended
June 30,
 
 
2017
 
2016
Net cash provided by operating activities
 
$
11,866

 
$
2,377

Net cash used in investing activities
 
(14,217
)
 
(3,601
)
Net cash (used in) provided by financing activities
 
(959
)
 
124

Net decrease in cash and cash equivalents
 
$
(3,310
)
 
$
(1,100
)
Cash Provided by Operating Activities
Our primary source of operating cash inflows is cash collected from our customers in connection with their use of our software solutions. Our primary uses of cash from operating activities are for personnel-related expenditures and third-party costs incurred to support the delivery of our software solutions.
For the six months ended June 30, 2017, cash provided by operating activities was $11.9 million resulting from our net income of $3.5 million, adjusted by non-cash charges of $8.8 million and a net decrease in our operating assets and liabilities of $0.4 million. The non-cash charges primarily consist of $6.1 million of depreciation and amortization of our property and equipment and capitalized software development and $2.7 million of stock based compensation. The net decrease in our operating assets and liabilities was mostly attributable to a $1.7 million decrease in accounts receivable and a $0.3 million decrease in accounts payable. The decrease in our operating assets and liabilities was partially offset by an increase in accrued expenses of $0.8 million, accrued employee expenses of $0.6 million and deferred revenue of $0.4 million.
For the six months ended June 30, 2016, cash provided by operating activities was $2.4 million resulting from our net loss of $5.9 million, adjusted by non-cash charges of $6.3 million and a net increase in our operating assets and liabilities of $2.0 million. The net increase in our non-cash charges was primarily the result of $4.5 million of depreciation and amortization of our property and equipment and capitalized software development and $1.6 million of stock based compensation. The increase in our operating assets and liabilities was mostly attributed to an increase of other liabilities of $1.5 million which was mostly attributed to an increase in deferred rent and an increase in deferred revenue of $1.1 million and a decline in accounts receivables of $1.0 million related to increased sales.
Cash Used in Investing Activities
Cash used in investing activities is generally comprised of purchases, maturities and sales of investment securities, additions to capitalized software development and purchases and dispositions of capital expenditures.
For the six months ended June 30, 2017, investing activities used $14.2 million in cash primarily as a result of $15.6 million of investment securities purchased, partially offset by $7.5 million of maturities of investment securities. In addition, we incurred capitalized software development costs of $5.3 million for the continued investment in our software development, and capital expenditures of $0.8 million to purchase property and equipment for the continued growth and expansion of our business.
For the six months ended June 30, 2016, investing activities used $3.6 million in cash primarily as a result of $21.4 million

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of sales, calls and maturities of investment securities offset by $16.7 million of investment securities purchased. In addition, we had an increase in capitalized software development costs of $5.2 million and an increase in capital expenditures of $3.2 million to purchase property and equipment to support the growth and expansion.
Cash (Used in) Provided by Financing Activities
Cash (used in) provided by financing activities is generally comprised of proceeds from the exercise of stock options, net share settlement for employee tax withholdings associated with the vesting of RSUs and activities associated with the Revolving Facility.
For the six months ended June 30, 2017, financing activities used $1.0 million in cash primarily as a result of net share settlements for employee tax withholdings associated with the vesting of RSUs of $1.3 million, partially offset by proceeds from stock option exercises of $0.4 million.
For the six months ended June 30, 2016, financing activities provided $0.1 million in cash primarily as a result of proceeds from stock option exercises.
Contractual Obligations and Other Commitments

In February 2017, we signed a lease amendment relating to the property located at 50 Castilian Drive in Santa Barbara, California, our corporate headquarters. This amendment extends the term from February 2018 to December 2021. The total commitment under this lease extension is $3.1 million. All of the other terms and conditions of the original lease agreement remain the same.

There have been no other material changes to our contractual obligations and other commitments as disclosed in our Annual Report.
Off-Balance Sheet Arrangements
As of June 30, 2017, we did not have any off-balance sheet arrangements.
Critical Accounting Policies
Our Condensed Consolidated Financial Statements and the related notes are prepared in accordance with GAAP. The preparation of our Condensed Consolidated Financial Statements requires us to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenue, costs and operating expenses, provision for income taxes and related disclosures.

There were no new critical accounting policies adopted during the six months ended June 30, 2017. Please refer to our Critical Accounting Policies as included in our Annual Report.
Recent Accounting Pronouncements
For information regarding recent accounting pronouncements, refer to Note 2, Summary of Significant Accounting Policies within our Condensed Consolidated Financial Statements.

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Item 3. Qualitative and Quantitative Disclosure about Market Risk
Interest Rate Risk
At June 30, 2017, we had cash and cash equivalents of $7.4 million consisting of bank deposits and money market funds, and $50.4 million of investment securities which are comprised of fixed rate debt securities and certificates of deposit. We did not purchase these investments for trading or speculative purposes and have not used any derivative financial instruments to manage our interest rate risk exposure.
As of June 30, 2017, a hypothetical 100 basis point decrease in interest rates would have resulted in an increase in the fair value of our investment securities of approximately $0.5 million, and a hypothetical 100 basis point increase in interest rates would have resulted in a decrease in the fair value of our investment securities of approximately $0.5 million. This estimate is based on a sensitivity model which measures an instant change in interest rates by 1% or 100 basis points at June 30, 2017.
The borrowings under our Revolving Facility are at variable interest rates. However, there was no outstanding balance under our Revolving Facility as of June 30, 2017. Accordingly, a hypothetical change in interest rates would not have impacted our debt service obligations as of June 30, 2017.
Inflation Risk
We have not been exposed to, nor do we anticipate being exposed to, material risks due to changes in inflation rates.
As of June 30, 2017, there were no other material changes in the market risks described in the section of the Annual Report entitled “Quantitative and Qualitative Disclosure of Market Risk.”
Item 4. Controls and Procedures
Evaluation of Disclosure Controls and Procedures
Our management, with the supervision and participation of our principal executive officer and principal financial officer, evaluated the effectiveness of our disclosure controls and procedures as of the end of the period covered by this Quarterly Report. The term “disclosure controls and procedures,” as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act, means controls and other procedures of a company that are designed to provide reasonable assurance that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms. Disclosure controls and procedures include, without limitation, controls and other procedures designed to provide reasonable assurance that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is accumulated and communicated to the company’s management, including its principal executive officer and principal financial officer, as appropriate to allow timely decisions regarding required disclosure.
Based on our management's evaluation, our principal executive officer and principal financial officer have concluded that, as of the end of the period covered by this Quarterly Report, our disclosure controls and procedures were effective to provide reasonable assurance that information we are required to disclose in reports that we file or submit under the Exchange Act is recorded, processed, summarized, and reported within the time periods specified in the SEC's rules and forms, and that such information is accumulated and communicated to our management, including our principal executive officer and principal financial officer, as appropriate, to allow timely decisions regarding required disclosure.
Changes in Internal Control over Financial Reporting
There were no changes in our internal control over financial reporting identified in connection with the evaluation required by Rule 13a-15(d) and 15d-15(d) of the Exchange Act that occurred during the period covered by this Quarterly Report that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.
Inherent Limitations on Effectiveness of Controls
In designing and evaluating our disclosure controls and procedures, our management recognizes that no evaluation of controls can provide absolute assurance that all control issues within a company have been detected. In addition, the design of disclosure controls and procedures must reflect the fact that management is required to apply its judgment in evaluating the benefits of possible controls and procedures relative to their costs. Accordingly, our disclosure controls and procedures are designed to provide reasonable, not absolute, assurance that the objectives of our disclosure controls system are met.

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PART II. OTHER INFORMATION
Item 1. Legal Proceedings
From time to time, we are involved in legal proceedings arising from or related to claims incident to the normal course of our business activities. Although the results of such legal proceedings and claims cannot be predicted with certainty, we are not currently a party to any legal proceeding(s) which, if determined adversely to us, would, individually or taken together, have a material adverse effect on our business, operating results, financial condition or cash flows. However, regardless of the merit of any claims raised or the ultimate outcome, legal proceedings may generally have an adverse impact on us as a result of defense and settlement costs, diversion of management resources and other factors.

Item 1A. Risk Factors    
An investment in our Class A common stock involves risks. Before making an investment decision, you should carefully consider all of the information in this Quarterly Report, including in the section entitled “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and the Condensed Consolidated Financial Statements and related notes. In addition, you should carefully consider the risks and uncertainties described in the section entitled “Risk Factors” in our Annual Report, which was filed with the SEC on February 27, 2017, as well as in our other public filings with the SEC. If any of the identified risks are realized, our business, financial condition, operating results and prospects could be materially and adversely affected. In that case, the trading price of our Class A common stock may decline, and you could lose all or part of your investment. In addition, other risks of which we are currently unaware, or which we do not currently view as material, could have a material adverse effect on our business, financial condition, operating results and prospects.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

None.

Item 3. Defaults Upon Senior Securities
None.

Item 4. Mine Safety Disclosures
Not applicable.

Item 5. Other Information
None.

Item 6. Exhibits
See the Exhibit Index immediately following the signature page of this Quarterly Report, which is incorporated herein by reference.


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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

 
 
AppFolio, Inc.
 
 
 
 
 
 
Date:
August 7, 2017
By:
/s/ Ida Kane
 
 
 
 
Ida Kane
 
 
 
 
Chief Financial Officer
 
 
 
 
(Principal Financial and Accounting Officer)
 



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EXHIBIT INDEX

  
Exhibit
Number
  
Description of Document
  
31.1
  
Certification of Chief Executive Officer pursuant to Rule 13a-14(a) or Rule 15d-14(a) promulgated under the Securities Exchange Act of 1934, as amended.
  
31.2
  
Certification of Chief Financial Officer pursuant to Rule 13a-14(a) or Rule 15d-14(a) promulgated under the Securities Exchange Act of 1934, as amended.
  
32.1*
  
Certifications of Chief Executive Officer and Chief Financial Officer, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
  
101.INS
  
XBRL Instance Document.
  
101.SCH
  
XBRL Taxonomy Extension Schema Document.
  
101.CAL
  
XBRL Taxonomy Extension Calculation Linkbase Document.
  
101.DEF
  
XBRL Taxonomy Extension Definition Linkbase Document.
  
101.LAB
  
XBRL Taxonomy Extension Label Linkbase Document.
  
101.PRE
  
XBRL Taxonomy Extension Presentation Linkbase Document.
 
 
 
 
 
*
 
The certifications attached as Exhibit 32.1 accompany this Quarterly Report pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, and shall not be deemed “filed” by the registrant for purposes of Section 18 of the Exchange Act, and are not to be incorporated by reference into any of the registrant’s filings under the Securities Act or the Exchange Act, whether made before or after the date of this Quarterly Report, irrespective of any general incorporation language contained in any such filing.
.