Mobile Fitness App Launch
The Challenge
A fitness startup had a React Native prototype that crashed constantly, drained battery, and couldn't handle more than 500 concurrent users. Their App Store rating was 2.1 stars and user retention was 12% after 30 days. They needed a production-grade rebuild before their Series A.
The Solution
We rebuilt the app from scratch using native Swift (iOS) and Kotlin (Android) with a shared Supabase backend. Implemented offline-first architecture for workout tracking, optimized video streaming for exercise demos, and built a real-time social feed. Added push notification sequences for retention and integrated Apple Health / Google Fit APIs.
Before vs. After
Services Used
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