Seamless Sync Coordinator.
Fero means 'spread / circulate'. Fero is a lightweight SDK that helps you manage initial and incremental syncs with ease. Keep your app data consistent, reliable, and fully controlled.
Engineered for sovereignty.
Everything you need to manage your digital life, built with zero-compromise security.
Initial & Incremental Sync
Handle first-time and recurring data syncs with a robust, reusable coordinator.
Custom Handlers
Plug in feature-specific sync handlers for contacts, messages, or any data model.
Retry & Backoff Strategies
Built-in retry logic with configurable backoff ensures sync reliability under network failures.
Easy Flutter Integration
Designed for Flutter apps with minimal setup and clear APIs.
Reliable Consistency
Keep app data consistent across devices and sessions.
Lightweight SDK
Small footprint focused on sync coordination, not heavy infrastructure.
Privacy is not a feature.
It's the foundation.
FERO is a zero-knowledge environment. Your data is encrypted locally before it ever reaches our infrastructure. Even in the event of a breach, your vault remains a black box to everyone but you.
Zero-Knowledge
Encryption and decryption happen exclusively on your device.
Military Grade
AES-256-GCM encryption protects your data at rest and in transit.
Open Sovereignty
You own the keys. We have no backdoors and no access.
Integrate Fero Today
Stop reinventing sync logic. Add Fero to your Flutter app and focus on building features.