Threema Alternatives

Threema is described as 'New mobile messaging app that puts security first. With true end-to-end encryption, you can rest assured that only you and the intended recipient can read your messages' and is a very popular instant messenger in the security & privacy category. There are more than 100 alternatives to Threema for a variety of platforms, including Android, iPhone, Windows, Mac and Linux apps. The best Threema alternative is Signal, which is both free and Open Source. Other great apps like Threema are Telegram, Element, Tox and Slack.

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Alternatives list

  1. Quaternion icon

    Quaternion

     4 likes
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    Quaternion is a cross-platform Qt5-based desktop IM client for Matrix, a reference desktop application using libQMatrixClient. Source code, issue tracker, roadmap etc. can be found at GitHub. Releases (with links to cross-platform source code archives, as well as binaries for...

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Flathub
    • Flatpak
    Quaternion screenshot 1
     
  2. Sphinx Chat icon

    Sphinx Chat

     4 likes
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    Sphinx.chat lets you use your lightning node to talk to anyone else who is running lightning and a sphinx compatible chat client.

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    Sphinx Chat screenshot 1
     
  4. Mesh icon

    Mesh

     26 likes
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    Technitium Mesh is a secure, anonymous, peer-to-peer (p2p), open source instant messenger designed to provide end-to-end encryption. Primary aim of developing this instant messenger is to provide privacy which is achieved using cryptography and anonymity using Tor network.

    Cost / License

    • Free
    • Open Source

    Application types

    Alerts

    • Discontinued

    Platforms

    • Windows
    Mesh screenshot 1
     
  5. Ad
    Screenshot
    Zenzap icon
    Zenzap

    Cloud-based platform for business chat, messaging, and task management, delivering structured communication, instant access control, integration with business tools, and business-grade security while supporting flexible workflows...

    https://www.zenzap.co
    Learn More
  6. Prav icon

    Prav

     4 likes
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    A user-friendly messenger for everyone with a focus on privacy and freedom.

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Android
    • F-Droid
    Prav screenshot 1
    Prav screenshot 2
    Prav screenshot 3
     
  7. twinme icon

    twinme

     5 likes
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    twinme messenger protects your identity & intimacy: no information to identify you and your contacts; relationships under your full control are private, non-transferable.

    Cost / License

    • Freemium (Pay once)
    • Proprietary

    Application types

    Platforms

    • Android
    • iPhone
    • Android Tablet
    • iPad
    twinme screenshot 1
    twinme screenshot 2
    twinme screenshot 3
     
  8. aTalk icon

    aTalk

     8 likes
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    An encrypted instant messaging with video call and GPS features for android.

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Android
    • F-Droid
    aTalk screenshot 1
    aTalk screenshot 2
    aTalk screenshot 3
     
  10. Xabber icon

    Xabber

     53 likes
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    Open source Jabber (XMPP) client with multi-account support, clean and simple interface. Being both free (as in freedom!) and ad-free, Xabber is designed to be the best Jabber client for Android .

    Cost / License

    • Free
    • Open Source

    Application types

    Alerts

    • Discontinued

    Platforms

    • Online
    • Android
    • F-Droid
    Xabber screenshot 1
    Xabber screenshot 2
    Xabber screenshot 3
     
  12. 0xchat icon

    0xchat

     3 likes
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    0xchat is a secure chat app built on the Nostr protocol. It prioritizes security, featuring private key login, encrypted private chats and contacts, encrypted group chats.

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Android
    • iPhone
    • Windows
    • Linux
    • Mac
    • BSD
    0xchat screenshot 1
     
  13. Ricochet Refresh icon

    Ricochet Refresh

     2 likes
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    Ricochet Refresh is the new updated version of Ricochet, supported by Blueprint for Free Speech.. We are a non-government, not-for-profit organisation working to safeguard the freedom of expression for whistleblowers, activists, and everybody else, worldwide.

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Windows
    • Mac
    • Linux
    Ricochet Refresh screenshot 1
     
  14. Librem Chat icon

    Librem Chat

     8 likes
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    End-to-end encrypted chat, VOIP, and video calling used by millions of people.

    Cost / License

    • Free
    • Open Source

    Application types

    Alerts

    • Discontinued

    Platforms

    • Android
    • iPhone
    • Android Tablet
    • iPad
    • F-Droid
    Librem Chat screenshot 1
    Librem Chat screenshot 2
    Librem Chat screenshot 3
     
  15. Tinode icon

    Tinode

     10 likes
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    Fully open source instant messaging server and clients. No proprietary components or non-free dependencies. Backend in pure Go (GPL 3.0), with a command-line administration tool in python + gRPC. Clients for Android, iPhone, and Web - ReactJS (all licensed under Apache 2.0).

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Online
    • Android
    • iPhone
    • Self-Hosted
    • Software as a Service (SaaS)
    iOS client
     
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