Regular chats and groups are encrypted in transit (TLS) and stored encrypted on our servers in Germany (AES-256), so they reach all your devices, move with you to a new phone, and smart translation works.
End-to-end encrypted chat: for your most private conversations:
- Open your friend's profile → ⋯ → Encrypted chat.
- It is encrypted on your phone using the Signal protocol design (X3DH + Double Ratchet). Our server can never read it.
- Safety number: compare it with your friend in person or on a call, then "Mark as verified".
- It stays on this phone only and doesn't move to a new phone.
- Not available in it: smart translation, the writing assistant, stickers, reactions, forwarding and dictation. On-phone translation works.