v0.4.0 Ships Offline-First Sync Engine
The team has released the core sync module that queues all streak check-ins locally and flushes them when connectivity returns. Early tests on 3G/4G show zero data loss during dropouts.
On-device habit streaks with offline-first sync and local nudges
The team has released the core sync module that queues all streak check-ins locally and flushes them when connectivity returns. Early tests on 3G/4G show zero data loss during dropouts.
All habit data is processed on-device; no telemetry or analytics calls are made. The interface now displays a clear 'offline' badge when no network is available.
Beta users on the Northeast Corridor reported consistent streak logging through tunnels and dead zones. Sync triggered successfully at station Wi-Fi hotspots.
The on-device reminder model now runs inference in under 12ms on Apple's A17 Pro chip. No server round-trips are needed for personalized nudge timing.
Users report nudges arriving 5–10 minutes before their typical habit window. The model adapts to irregular schedules without ever sending data to the cloud.
The first 500 users have been onboarded. No cloud accounts required — all habits are stored in on-device SQLite. Sync is purely opportunistic.
A third-party audit confirmed zero data exfiltration. The app uses no Firebase, no Amplitude, no Crashlytics — only local storage and encrypted opportunistic sync.
UI uses a muted gray badge when offline and a warm orange flame for active streaks. Both treatments respect reduced-motion accessibility settings.
Stress testing shows the local queue can buffer up to 10,000 check-in events before sync. Background sync runs when the device detects a stable network.
A user documented a 14-day streak maintained across 4 time zones with no cloud connection. Sync caught up within seconds of landing and connecting to hotel Wi-Fi.
On-device pattern matching hit 92% precision for reminder timing. Users received nudges within a 2-minute window of their typical habit start.
The app is listed as a productivity utility with a privacy nutrition label that shows zero data collection. Review is expected within two weeks.