Duolingo landed onto the public markets this week, rallying excitement and attention for the edtech sector and its founder cohort. The language learning business’ stock price soared when it began to trade, even after the unicorn raised its IPO price range, and priced above the raised interval.

Duolingo’s IPO proves that public market investors can see the long-term value in a mission-driven, technology-powered education concern; the company’s IPO carries extra weight considering the historically few edtech companies that have listed.

Duolingo’s IPO proves that public market investors can see the long-term value in a mission-driven, technology-powered education concern; the company’s IPO carries extra weight considering the historically few edtech companies that have listed.

For those that want the entire story of Duolingo, from origin to messy monetization to historical IPO, check out our EC-1. It has dozens of interviews from executives, investors, linguists and competitors.

For today, though, we have fresh additions. We sat down with Duolingo CEO Luis von Ahn earlier in the week to discuss not only his company’s IPO, but also what impact the listing may have on startups. Duolingo’s IPO can be looked at as a case study into consumer startups, mission-driven companies that monetize a small base of users, or education companies that recently hit scale. Paraphrasing from von Ahn, Duolingo doesn’t see itself as just an edtech company with fresh branding. Instead, it believes its growth comes from being an engineering-first startup.

Selling motivation, it seems, versus selling the fluency in a language is a proposition that international consumers are willing to pay for, and an idea that investors think can continue to scale to software-like margins.

Duolingo has gone through three distinct phases: Growth, in which it prioritized getting as many users as it could to its app; monetization, in which it introduced a subscription tier for survival; and now, education, in which it is focusing on tacking on more sophisticated, smarter technology to its service.