Threema OnPrem. Self-Hosted

4.8
61 reviews
10K+
Downloads
Content rating
USK: All ages
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About this app

Threema OnPrem is the self-hosted messaging solution for organizations that require maximum security. The combination of Threema’s well-established security architecture and total data ownership results in a self-contained chat environment that is unparalleled in terms of confidentiality and is suitable for professional use in government agencies, police forces, and industrial companies.

NOTE: In order to use this app, Threema OnPrem must be set up on your company server. More information: https://threema.ch/onprem

Threema OnPrem is not available for private users.
Updated on
17 Apr 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.8
56 reviews
Md Shamim
17 August 2024
Mdshamim
1 person found this review helpful
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Douglas Mabele
24 July 2024
Better
1 person found this review helpful
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Threema GmbH
2 August 2024
Thank you for your review!

What's new

- The Android app can now be used with the beta version of Threema 2.0 for desktop (“Main menu > Threema 2.0 for desktop (beta)”)
- Fixed various bugs that could occur when searching within a chat
- Display the correct name of a PDF file
- Improved notification of 1:1 calls
- Improved memory consumption when restoring large data backups
- Display emoji reactions in the desktop app and the web client