§ Mobile Apps / Offline-First
Works in the lift.
An offline-first app treats the network as an enhancement, not a requirement. Every action is instant; every write is safe. Signal loss is invisible to the user.
§ Sync queue
Offline
Order #4821 placed2.1 kb
Photo upload (3 files)8.4 mb
Form submission saved0.8 kb
Preferences updated0.2 kb
Comment posted1.1 kb
— Toggle offline/online to drain the queue
§ Performance — What offline-first delivers
0%
Data preserved offline
0 ms
UI latency on action
< 0s
Sync on reconnect
§ Approach — How we build it
The four layers
01
Local persistence
Every write goes to SQLite on-device first. The network is never the bottleneck.
02
Conflict resolution
Last-write-wins or custom merge — our sync layer handles server reconciliation cleanly.
03
Background sync
When signal returns, uploads happen in a background task — the user never waits.
04
Optimistic UI
Actions look instant. If sync fails, we roll back gracefully with an informative prompt.
Ship an app that works anywhere.