A robust offline-first architecture with real-time data streaming typically requires a heavy lift and a complex architecture. PowerSync simplifies this with a plug-in cloud service and SDK.
PowerSync provides an automatically replicated local in-app database with real-time sync. This removes complexity and allows app developers to work with a local database instead of being dependent on API development.
PowerSync automatically streams data update events from your backend database to users in real-time. Data is scoped to the user based on declarative rules.
Stick with your existing SQL architecture while enabling modern apps.
The SDK takes care of automatically syncing with the backend database even if network connectivity is not immediately available. When users are online, the SDK streams data updates in real-time.Read the docs
Developers query and update the local database directly, with no nead for REST or GraphQL API calls.
await db.execute('UPDATE users SET name=? WHERE id=?', ['My name', user_id]);
PowerSync can connect to existing SQL databases to automatically sync data to SQLite client databases with a strong consistency model.
Data scoping and security is handled by a sync service that is easy to configure and debug.
Stick with proven SQL technologies while adding a complete sync system. Including a way to dynamically scope which data gets synced to which users — one of the hardest problems in data syncing.
With the sync rules system, data is scoped using declarative rules so that users sync and subscribe to only the data updates relevant to them.
Stick with proven SQL technologies on both your backend and client.
Because all writes go through your backend API, you can easily add custom conflict resolution logic.
Client-side schema and data migrations are not necessary. Schema changes only require some reprocessing which is handled automatically.
The PowerSync SDK includes several optimizations that result in incredibly fast database queries and writes.
Multiple source databases can be connected to one instance of the PowerSync Cloud Service.
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Connect your own Postgres database or use Supabase