Security-first communication model
The app emphasizes encrypted transport, key exchange hygiene and predictable data handling.
End-to-end message encryption
Message payloads are encrypted between users and decrypted only on allowed endpoints.
Device self-sync encryption
Own-message synchronization uses a dedicated encrypted payload path across your devices.
Controlled relay behavior
Relay manages routing, history snapshots and attachment caching with strict flow states.
Clear trust boundaries
Client, relay and storage responsibilities are separated for easier auditing and evolution.