The messenger that puts security and privacy first.
Pay once, chat forever.*
No collection of user data. Open Source.
Guaranteed Privacy, Strong Encryption, Open Source
Threema is the instant messenger designed to generate as little user data as possible. All communication is end-to-end encrypted, and the messaging app is open source.
Chat Anonymously: No Phone Number Required
Each user generates a random Threema ID when setting up the chat app. Linking a phone number or email address is optional.
No Collection of User Data, No Ads
Services that are financed by advertising collect user data in order to target their ads. Threema is not financed by advertising and does not collect user data.
100% Swiss Made and GDPR-compliant
Threema is a true Swiss company hosting its own servers in Switzerland.** From software development to customer support, everything is done in-house. The instant-messaging service is fully GDPR-compliant.
Privacy Is Worth Paying For
There is no such thing as a free lunch. If you don’t pay with money for a service, you pay with your data instead.
Find out how Threema stacks up against other messengers like WhatsApp, Signal, or Telegram in the comprehensive messenger comparison.
With the 5.0 update, Threema for iOS concludes its UI modernization and introduces a completely redesigned chat view along with some handy new features. 📱✨ threema.ch/bp/threema-50-for-ios
Stay in the Loop
Follow us on Twitter and subscribe to the Threema Channel to stay up to date about all things Threema.
The Threema Channel allows you to subscribe to newsfeeds on Threema-related topics directly in the Threema app.
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