Saivo

Private chat and calls. No phone number.

Saivo is an end-to-end encrypted messenger. You add people by sharing a card or a QR code, and you choose which server carries your messages.

Checking server…

Join the closed beta   Read the wiki

A Saivo conversation on a phone
Closed beta. Saivo is new. Nobody outside the project has reviewed the cryptography yet, so do not rely on it where your safety depends on it. There is no iPhone app. What is protected, and what is not.

What you get

No phone number

No account on a central server, no email, no contact upload. Messages from strangers wait as requests until you accept them.

Encrypted end to end

Chats, groups, files, voice messages and calls. One-to-one chats and groups use post-quantum encryption.

You choose the server

Use ours, or run your own relay on a spare PC, a NAS or a cheap server. Friends can use different servers, like email.

Calls

Voice and video calls, one to one and in groups, with encryption on every audio and video frame.

Safety numbers

Compare a 60-digit number in person to be sure you are talking to your friend, and get a red alert if their keys change.

Your data, your lock

Optional app lock, a duress passphrase, disappearing messages and encrypted backups you restore with a recovery key.

A look inside

The chat list A conversation The safety number screen

The people and messages in these pictures are made up.

No ads, no tracking

Saivo has no ads, no analytics and no third-party tracking code, and neither does this website: no cookies and no scripts that phone home. Read the privacy policy.