Live Learning Platform for K-12 EdTech Startup
Built a cross-platform learning app with live classes, quizzes, and progress tracking — scaled to 10,000 concurrent learners in the first semester.
The problem
The startup had validated demand with a Zoom-based pilot but couldn't scale. Teachers had no tools for quizzes or attendance. Parents had no visibility into progress. The existing mobile app was a thin WebView wrapper that crashed on low-end Android devices.
The approach
We rebuilt the mobile app in React Native with Expo for faster iteration. For live classes, we chose a WebRTC-based solution with server-side recording instead of embedding a third-party video SDK — this gave us control over latency and cost. We designed the quiz engine to work offline and sync when connectivity returned, because many students were on intermittent connections.
What we built
- Live class streaming with real-time chat, hand-raise, and screen sharing
- Interactive quiz engine with offline support and instant grading
- Parent dashboard showing attendance, quiz scores, and teacher feedback
- Teacher toolkit for scheduling, attendance tracking, and content upload
Outcomes
Stack used
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