Sync, simplified.For Flutter developers.
Fero is a lightweight sync coordinator for Flutter. Handle initial syncs, incremental updates, network failures, and retry logic in your app—without rebuilding it every time.
Built for syncing complexity.
Stop rebuilding sync logic. Start shipping features.
Initial & Incremental Sync
First-time sync and recurring updates, handled consistently.
Network Resilience
Automatic retries with exponential backoff. Your sync survives poor connections.
Custom Handlers
Sync your specific data models. Plug in feature-specific logic.
Lightweight
Minimal dependencies. Small bundle impact. Focused on sync, nothing else.
Works with Your Backend
Agnostic to architecture. Works with REST, GraphQL, custom backends.
Clear APIs
Simple, documented APIs. Easy to understand, easier to integrate.
What makes FERO different
Sync sounds simple but breaks in production. Fero handles initial syncs, incremental updates, network failures, and retry logic so you don't have to rebuild it for every app. Works with your backend, not against it.
Sync infrastructure.Your control.
Fero doesn't store your data—it coordinates syncing. How your data is protected depends on your backend. Fero ensures the sync process is reliable and consistent.
How Fero handles data: Fero is a sync coordinator—it doesn't store your data. How your app syncs depends on your backend. We focus on making sync reliable, not on storing credentials.
Backend Agnostic
Works with any backend architecture. You keep full control.
No Data Storage
Fero coordinates sync, doesn't store user data.
Developer Owned
Open source approach. Inspect the code, run it your way.
Our commitment to you
Open & documented: Fero is built to integrate with your existing backend. We don't lock you in.
Developer-first: Built by developers, for developers. Code examples, clear APIs, and active support.
Sustainable: Fero isn't a VC-backed experiment. It's a tool that solves real problems, built to last.
Integrate Fero Today
Save weeks of development. Add Fero to your Flutter app and focus on features.