Thanks to Threema Safe, you will never lose your Threema ID, contacts, and groups again. Our new backup solution is anonymous, highly secure, automatic, platform-independent, and can be self-hosted. Once Threema Safe is activated, you can confidently forget about it.
Why Threema Safe is secure, how often backups are created, which data they contain, how to store backups on your own server, and more information can be found in the Threema Safe FAQs. Technical details concerning security are documented in the Cryptography Whitepaper.
Threema Safe is currently available for Android. iOS and Windows Phone will be supported soon. To learn what else is new in Threema 3.6 for Android, please refer to the change log.