Threema Libre

Secure and private messaging
AppID:ch.threema.app.libre
Author:Unknown
License:AGPL-3.0-only
Donation:
InRepoSince:2023-12-08
LastRepoUpdate:2026-04-15
LastAppUpdate:Unknown
LastVersion:6.4.1l
Categories:Internet, Messaging, Voice & Video Chat
APK source:
Google Play:Check if it's there
icon NOTE: A Threema Shop license is required, please visit: https://shop.threema.ch to get one.

Threema is the world’s best-selling secure messenger, used by more than 12 million people in over 175 countries, developed in Switzerland, and designed with privacy and data protection in mind. Whether chats, calls, or files, everything is end-to-end encrypted, and no data trail is left behind. Instead of a phone number or email address, a randomly generated Threema ID serves as a unique identifier – anonymous and secure. Threema protects what really matters: your privacy.

In contrast to the version distributed via Google Play, Threema Libre contains no proprietary libraries / components (like Google Play Services).

Advantages of Threema:
• Text and voice messages, including emoji reactions
• End-to-end encrypted voice, video, and group calls
• Location sharing
• Sending files in all formats (PDF, GIF, MP3, ZIP, and more)
• Ability to edit sent messages and delete them for chat partners
• Desktop app and web client for convenient chatting on your PC
• Group creation and polls
• Light or dark mode
• No ads, no trackers, no data collection
• Identity verification of contacts by scanning their QR code

Reliable security:
• Open source and regular audits
• Servers in Switzerland
• Anonymous use possible: no phone number or email address required
• Messages are deleted from the server immediately after delivery

Do you have any questions or problems? Our FAQ can help: https://threema.com/support

Enjoy using Threema!

WhatsNew:

- Improved thumbnails in notifications

anti Anti-Features:
  • NonFreeNet (this application promotes/depends a non-Free network service):
    ⇒ The server-side code is not open source.
  • TetheredNet (This app is bound to a certain network service):
    ⇒ Relies on Threema's servers.
Download Website Source Issues ChangeLog
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While you can download the APKs here directly, you should preferably use an F-Droid client so the app stays up-to-date on your device.

Packages

Version 6.4.1l (2026-04-15) no RB details available help icon

Version 6.4.0l (2026-04-03) no RB details available help icon

Version 6.3.2l (2026-03-11) no RB details available help icon