Email or IM? Rush’s app combines them both — with productivity tools thrown in too

 Email? IM? IM? Email? The rise of mobile messaging apps has challenged email as the primary communications channel for all things, including work — what happens when you blend them together? That’s the approach taken by Rush, an app that combines email and messaging, but also includes your calendar and other productivity tools. Headquartered in Tokyo, Japan, but with offices… Read More