The nagging goes beyond email subject lines and push notifications; inactive users might look down at their phones to find that the Duolingo app icon suddenly depicts a sadder and older version of ...

Duolingo has perfected the art of social ... and viral sharing—all sparked by a sassy stunt. What began as a simple app icon change—featuring X’s over Duo’s eyes—quickly escalated ...

This pioneering collaboration unites two complementary digital lifestyle platforms: TimeTree's sophisticated schedule management tools and Duolingo's acclaimed language learning ecosystem. The ...