Healthness
Nutrition, fitness and sleep — native on iOS and Android
- Two native apps, one backend. SwiftUI on iOS, Kotlin and Jetpack Compose on Android, written from scratch in 2026. Cloud Functions and Firestore rules are shared, so a backend change lands on both at once.
- Health data that agrees. HealthKit and Health Connect feed calories and sleep; the sleep score is mirrored line for line in Swift and Kotlin, and both test suites assert the same fixture.
- Meal capture with AI. Photograph a plate or a label and get a per-100 g breakdown from Claude — keys server-side, consent before the first request.
- Social and premium. Friends, meal photos with reactions, push notifications; subscriptions on StoreKit 2 and Play Billing.
