The Problem
Mobile productivity apps either feel slow or treat phones like miniature laptops. Power users want native-grade fluidity with desktop-grade depth.
The Solution
A natively-fluid app with offline-first storage, biometric vault, and a gesture system designed for thumbs — wrapped in a typography and motion system that feels like a flagship release.
Key Features
Writes land locally instantly; CRDT sync reconciles when the device reconnects.
Sensitive notes and credentials gated by Face ID / Touch ID with secure enclave storage.
Edge-swipe, long-press, and pinch gestures map to common actions — no thumbstretch.
Reanimated 3 spring physics across every transition for a tactile feel.
Camera + on-device OCR turns receipts and whiteboards into searchable notes.
Hand-off cursor position and selection across phone, tablet, and web.
Architecture
- 1WatermelonDB on SQLite for offline-first writes; lazy reactive queries drive UI.
- 2Sync uses CRDT deltas over a thin Node sync server with end-to-end encryption.
- 3Biometric flow uses Expo SecureStore with hardware-backed keys.
- 4Animation layer entirely on the UI thread via Reanimated worklets.
Outcomes
Highlights
- 60fps everywhere
- Truly offline-first
- Biometric by default
- Gestures over taps