SimpleX Chat is a private and secure open-source messenger.

It is built on SimpleX - the first messaging and application platform that is 100% private by design - it does not have access to your connections graph.

You can connect to anybody you know via link or scan QR code (in the video call or in person) and start sending messages instantly - no emails, phone numbers or passwords needed.

Your profile and contacts are only stored in the app on your device - our servers do not have access to this information.

All messages are end-to-end encrypted using open-source double-ratchet protocol; the messages are routed via our servers using open-source SimpleX Messaging Protocol.

The app sends local notifications only when messages or connection requests arrive - the app checks for the new messages every 10-15 min, but if you stop using the app it may stop checking for the new messages.

Please send us any questions via the app (connect to the team via settings!), email [email protected] or submit issues on GitHub (https://github.com/simplex-chat/simplex-chat/issues)

Source code: https://github.com/simplex-chat/simplex-chat

Follow us on Twitter (@SimpleXChat) and Reddit (r/SimpleXChat/) for the latest updates.