Threema OnPrem

About this app

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!

• Various improvements and various bug fixes Threema OnPrem 7.3.1 • Easy device switch: When switching to a new iPhone, you can transfer your Threema OnPrem data directly to the new iOS device using Quick Start (can be disabled by the administrator) • Various UX improvements • Improvements in relation to the logging system • Improved video converting when “Original” is selected as the quality • Memory and performance improvements when handling large files • Improvements in relation to Threema calls • Fixed a bug in relation to group chat notifications • Fixed a possible bug that could occur when encoding URLs • Fixed a bug in relation to voice messages • Fixed various bugs in relation to the custom company logo • Other improvements and various bug fixes

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1. First observed Aug 14, 2026 · 12:59 AM Free