Threema OnPrem

Self-Hosted Business Messaging

Free

Threema OnPrem is the self-hosted communication solution for organizations with the highest security requirements. The combination of Threema’s proven security architecture and complete data sovereignty creates an independent communication environment that is unmatched in terms of confidentiality – ideal for government agencies, police forces, and industrial companies. Advantages of Threema OnPrem: • 100% data sovereignty through hosting on your own servers • Proven Threema security architecture • Confidential communication in teams, groups, and projects • End-to-end encrypted voice and video calls • Secure exchange of files and documents in all formats • Cross-platform use thanks to mobile app, desktop app, and web client • Additional protection of confidential chats with PIN or fingerprint NOTE: Before you can use this app, Threema OnPrem must be set up on your company server. For more information, visit threema.com/onprem. Enjoy using Threema OnPrem!

  • 5.0
    out of 5
    2 Ratings

• Fixed an issue that caused only a black screen to be displayed in certain cases Threema OnPrem 7.2.4o • Fixed a bug that could occur when opening chats • Fixed a bug that could occur when connecting to the server • Fixed a bug that occurred when deleting or editing sent messages • Various improvements related to VoiceOver and voice messages Threema OnPrem 7.2.3o • Fixed a bug related to restoring a Threema Safe backup with an own server Threema OnPrem 7.2.2o • Fixed a bug related to the contact synchronization Threema OnPrem 7.2.1o • Fixed several bugs related to the Liquid Glass design • Fixed several bugs related to individual and group calls • Fixed several bugs related to forwarding messages • Various performance optimizations • General improvements and various bug fixes

The developer, Threema GmbH, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Contact Info
    • Identifiers
  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

The developer indicated that this app supports the following accessibility features. Learn More

  • Supported Features

    • VoiceOver

    • Voice Control

    • Larger Text

    • Dark Interface

    • Sufficient Contrast

    • Reduced Motion

    • Audio Descriptions

Seller
  • Threema GmbH
Size
  • 105.2 MB
Category
  • Social Networking
Compatibility
Requires iOS 17.0 or later.
  • iPhone
    Requires iOS 17.0 or later.
  • iPad
    Requires iPadOS 17.0 or later.
Languages
English and 19 more
  • English, Bulgarian, Czech, Dutch, French, German, Italian, Japanese, Korean, Polish, Portuguese, Russian, Simplified Chinese, Slovak, Spanish, Swedish, Swiss German, Traditional Chinese, Turkish, Ukrainian
Age Rating
4+
Copyright
  • © 2022 - 2026 Threema GmbH. All rights reserved.