AppMatic Tech builds Flutter companion apps for smart rings that pair over Bluetooth Low Energy, store every reading on the phone first, sync to a Laravel or Node.js back end, and share data with Apple HealthKit and Android Health Connect. 330+ products shipped since 2017 from Ahmedabad, India.
A smart ring has no screen, so the app is the product. AppMatic Tech designs pairing, background sync, signal-quality flags, and health platform sharing as one pipeline.
Mobile App Development Stack for Wearables
| Layer | What AppMatic Tech uses |
|---|---|
| Cross-platform UI | Flutter (Dart) for iOS and Android |
| Device link | BLE GATT notifications with queued operations and reconnection |
| Health data | Apple HealthKit and Android Health Connect |
| Local storage | Store-then-sync with idempotent uploads |
| Backend | Laravel or Node.js API with firmware update path |
How AppMatic Tech Delivers This
- Document the ring's GATT profile and data records.
- Build pairing, reconnection, and background capture.
- Add signal-quality detection and trend screens.
- Integrate HealthKit and Health Connect permissions.
- Test on physical rings across both platforms, then release.
Proof: Related AppMatic Tech Build
A wellness device app where AppMatic Tech completed BLE read and write integration across an eight-month engagement.
Frequently Asked Questions
- Can one Flutter codebase support both iOS and Android rings?
- AppMatic Tech shares the UI and business logic in Flutter and writes platform adapters for BLE background behaviour and health platform access, which differ per operating system.
- How does the app handle low-quality sensor readings?
- AppMatic Tech flags low-contact readings as unreliable, excludes them from trends and health platform writes, and tells the user how to fix the fit.
- What does a smart ring companion app cost?
- AppMatic Tech prices wearable companion apps from $15,000 for a single-platform MVP, with dual-platform and full platform tiers scoped by device protocol and back end.
Further reading: BLE Background Sync for Wearables on iOS and Android: State Restoration, Foreground Services, and Why Readings Go Missing