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    Threema. The Secure Messenger icon

    Threema. The Secure Messenger

    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 pri...

    social
    4.3
    613+
    iOS
    Freemium
    Honest Take

    + Users praise Threema for its strong device-to-device security, anonymity, and privacy features, especially its open-source nature and Swiss servers.

    The app suffers from several bugs, especially with video calls (echoes, audio issues after updates), camera access, and lacks features like message editing before sending stickers or indicating listened audio messages.

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    Screenshots

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    About Threema. The Secure Messenger

    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.

    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!

    Key Features

    Universal App
    Family Friendly
    Multi-language

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