

PowerSync
PowerSync keeps backend SQL databases in sync with on-device SQLite databases embedded in a client SDK. It enables real-time reactive offline-first/local-first apps that remain available even when network connectivity is poor or non-existent.
Cost / License
- Freemium (Subscription)
- Proprietary
Platforms
- Software as a Service (SaaS)
Features
- SQLite
PostgreSQL support
PowerSync information
What is PowerSync?
PowerSync keeps backend SQL databases in sync with on-device SQLite databases embedded in a client SDK. It enables real-time reactive offline-first/local-first apps that remain available even when network connectivity is poor or non-existent.
Offline-first / local-first is a paradigm where your app code works directly with a client-side embedded database, which automatically syncs with a backend database in the background.
PowerSync currently supports Postgres with Flutter, React Native and web. Additional backend database support and SDKs are on the way.




Comments and Reviews
We run PowerSync self-hosted for a steel-fabrication shop floor app where the tablets go offline mid-shift with no wifi. The Postgres-native sync means we didn't have to build our own conflict resolution - verified it works end to end in airplane mode.