JustRelax
- Live
- Android
- iOS
A relaxing-sounds app where you layer rain, waves, fire and birds into one living scene.
Metrics
- −25%cold start
- 571 mscold start after Baseline Profiles
- 12languages
- 468unit tests
Highlights
- Describe a moment in one sentence and AI builds the scene.
- v3.0 shipped for Android and iOS from a shared KMP core (34 Gradle modules); offline-first, 12 languages.
- A TypeScript Cloudflare Workers backend that keeps API keys off the device, verifies Play Integrity and App Attest, rate-limits each install and powers AI-generated sound scenes.
- Baseline Profiles cut cold start by 25% (764 ms → 571 ms); 468 Kotlin unit tests run in CI.