Delta Chat

The messenger with the broadest audience in the world.
Free, independent, email compatible.

Independent

There is no Delta Chat server.
The app only uses your email server.

Push messages in seconds.
Rapid interface.

Unlimited chats, images, videos, audio messages and more. Multi-client capable.

Delta Chat is free forever.
Open Source. No ads. No subscription. No vendor lock-in.

Encrypted with all common algorithms. Messages stay on your servers.

Delta Chat is safe for business use, compatible and standards-based.