An offline-first app treats local data as the source of truth, syncing to the server in the background rather than requiring a live connection for every action.
What offline-first actually means
When it's worth building
Apps used in the field, during travel, or in areas with unreliable connectivity benefit most. For apps that are always used on stable Wi-Fi, the added complexity may not be worth it.
The trade-offs to plan for
Offline-first architecture adds real complexity around conflict resolution and sync logic, so it's a decision to make early, not retrofit later.
