Roja is a learning app designed around one question: how do you make time spent on a device actually build toward personal growth, instead of just filling idle time. Built with Pooja Bas at UE Germany between April and July 2025, it pairs voice-narrated courses with lock screen navigation alerts, so learning fits into a commute instead of competing with it. The result is a stress free way to keep up with courses on transit, with gamified streaks and rewards to keep it sustainable beyond the first week.