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Quaternion Alternatives

Quaternion is described as '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' and is a Encrypted Chat app in the social & communications category. There are more than 25 alternatives to Quaternion for a variety of platforms, including Android, iPhone, Windows, Linux and Mac. The best alternative is Signal, which is both free and Open Source. Other great apps like Quaternion are Telegram, Element, Tox and WhatsApp.

Quaternion alternatives are mainly Encrypted Chat Apps but may also be Group Chat Apps or Instant Messengers. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of Quaternion.
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Quaternion is a cross-platform Qt5-based desktop IM client for Matrix, a reference desktop application using...

Learn more about Quaternion

  1. Signal icon

    Signal

    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • Android Tablet
    • iPad
    203 alternatives to Signal 

    Signal is a messaging app with an unexpected focus on privacy, combined with all the features expected from a modern IM app. Signal has received a lot of praise from all around the world for its security and privacy-respecting technologies.

     Suggest and vote on features
    Features
    1.  End-to-End EncryptionSignal has E2E Encryption, for entire or parts of the app.
    2.  Privacy focusedSignal is considered a privacy friendly alternative.
    3.  Ad-freeSignal doesn't contain any form of external advertising.
    4.  Self Destructing MessagesSignal supports the use of private messages that will be auto deleted according to a specified time or action.
    5.  VoiP CallsSignal allows you to make voice calls over Internet using the Voice over Internet Protocol (VoIP).
    6.  Dark ModeSignal supports dark mode for comfortable usage in low light conditions.
    7.  Works OfflineSignal can be used without the need to connect to the internet.
    8.  No TrackingSignal will not track you or use your personal data.
    Screenshot
    Screenshot
  2. Telegram icon

    Telegram

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • HUAWEI AppGallery
    • Windows Phone
    • iPad
    • Apple Watch
    • Linux Mobile
    • Android Wear
    • PortableApps.com
    • FreeBSD
    262 alternatives to Telegram 

    Telegram is a messaging app created by former VK creators with a focus on speed and security. It’s superfast, simple and free. It is like SMS, but more powerful.

     Suggest and vote on features
    Features
    1.  LightweightTelegram consumes less device resources compared to similar apps.
    2.  Ad-freeTelegram doesn't contain any form of external advertising.
    3.  End-to-End EncryptionTelegram has E2E Encryption, for entire or parts of the app.
    4.  Privacy focusedTelegram is considered a privacy friendly alternative.
    5.  Dark ModeTelegram supports dark mode for comfortable usage in low light conditions.
    6.  VoiP CallsTelegram allows you to make voice calls over Internet using the Voice over Internet Protocol (VoIP).
    7.  PortableTelegram can be used from a USB stick or similar with no prior installation.
    8.  Works OfflineTelegram can be used without the need to connect to the internet.
    9.  Multiple Account supportTelegram support multiple accounts without the need to logout and login
    Telegram Desktop
    Telegram iOS #1


  3. Element icon

    Element

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Self-Hosted
    • Matrix.org
    • Cloudron
    • F-Droid
    • FLATHUB
    264 alternatives to Element 

    Element is a secure collaboration and messaging app based on the Matrix protocol. It’s decentralised to deliver digital sovereignty, and based on an open standard for easy connections and interoperability. It is end-to-end encrypted by default.

     Suggest and vote on features
    Features
    1.  DecentralizedElement is based on a decentralized infrastructure with no single entity controlling it.
    2.  End-to-End EncryptionElement has E2E Encryption, for entire or parts of the app.
    3.  Privacy focusedElement is considered a privacy friendly alternative.
    4.  VoiP CallsElement allows you to make voice calls over Internet using the Voice over Internet Protocol (VoIP).
    5.  Support for MarkDownElement supports MarkDown for document formatting.
    6.  File VersioningElement has a version system that lets you view and go back to older versions of the project/file/document.
    7.  No TrackingElement will not track you or use your personal data.
    8.  Real time collaborationMultiple users can work together in Element simultaneously.
    9.  DRM FreeNo Digital rights management (DRM), i.e. no copy protection.
    Video calls for desktop and mobile
    Collaboration widgets
  4. Tox icon

    Tox

    • Mac
    • Windows
    • Linux
    • Android
    • Android Tablet
    • BSD
    179 alternatives to Tox 

    With the rise of widespread government monitoring programs, Tox is an easy to use application that allows you to connect with friends and loved ones without anyone else listening in.

     Suggest and vote on features
    Features
    1.  DecentralizedTox is based on a decentralized infrastructure with no single entity controlling it.
    2.  Privacy focusedTox is considered a privacy friendly alternative.
    3.  End-to-End EncryptionTox has E2E Encryption, for entire or parts of the app.
    4.  No registration requiredYou can use most of the features in Tox without registration.
    5.  Screen SharingYou can use Tox to share your screen with your colleages or friends.
    6.  Dark ModeTox supports dark mode for comfortable usage in low light conditions.
    7.  LightweightTox consumes less device resources compared to similar apps.
    8.  No TrackingTox will not track you or use your personal data.
    9.  VoiP CallsTox allows you to make voice calls over Internet using the Voice over Internet Protocol (VoIP).
    The Universal Tox Client. A Tox client that runs on Android, iOS, Windows, Mac OSX, Linux, FreeBSD & the web. Written in JS using React & React Native / electron.
    qTox. A Tox client developed in C++ with the Qt framework
  5. WhatsApp icon

    WhatsApp

    • Mac
    • Windows
    • Online
    • Android
    • iPhone
    • Android Wear
    249 alternatives to WhatsApp 

    WhatsApp is an iPhone and Android messaging app which allows you to exchange messages without having to pay for SMS.

     Suggest and vote on features
    Features
    1.  End-to-End EncryptionWhatsApp has E2E Encryption, for entire or parts of the app.
    2.  Dark ModeWhatsApp supports dark mode for comfortable usage in low light conditions.
    3.  Two-factor AuthenticationWhatsApp supports two-factor authentication (2FA).
    4.  Support for @mentionsWhatsApp supports the use of mentions through @ to a particular user, who will be notified personally.
    5.  VoiP CallsWhatsApp allows you to make voice calls over Internet using the Voice over Internet Protocol (VoIP).
    6.  Expiring StoriesYou can create, view, interact and share temporary stories in WhatsApp.
    Android (1)
    Android (2)


  6. Wire icon

    Wire

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Self-Hosted
    • F-Droid
    • Software as a Service (SaaS)
    259 alternatives to Wire 

    Wire is the most secure collaboration platform featuring messenger, voice, video, conference calls, file-sharing, and external collaboration –all protected by the most secure end-to-end-encryption.

     Suggest and vote on features
    Features
    1.  End-to-End EncryptionWire has E2E Encryption, for entire or parts of the app.
    2.  VoiP CallsWire allows you to make voice calls over Internet using the Voice over Internet Protocol (VoIP).
    3.  Screen SharingYou can use Wire to share your screen with your colleages or friends.
    4.  Privacy focusedWire is considered a privacy friendly alternative.
    5.  Multiple Account supportWire support multiple accounts without the need to logout and login
    Screenshot
    Screenshot
  7. Briar icon

    Briar

    • Linux
    • Android
    • F-Droid
    47 alternatives to Briar 

    An open-source decentralized and encrypted messaging app even without internet connection via Wi-Fi and Bluetooth. Messages are stored securely on your device, not in the cloud. Connect directly with nearby contacts - no Internet access is required.

     Suggest and vote on features
    Features
    1.  DecentralizedBriar is based on a decentralized infrastructure with no single entity controlling it.
    2.  End-to-End EncryptionBriar has E2E Encryption, for entire or parts of the app.
    3.  Works OfflineBriar can be used without the need to connect to the internet.
    4.  No registration requiredYou can use most of the features in Briar without registration.
    5.  Dark ModeBriar supports dark mode for comfortable usage in low light conditions.
    private messages
    private group
  8. Threema icon

    Threema

    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    96 alternatives to Threema 

    Threema is a 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.

     Suggest and vote on features
    Features
    1.  End-to-End EncryptionThreema has E2E Encryption, for entire or parts of the app.
    2.  Privacy focusedThreema is considered a privacy friendly alternative.
    3.  Encrypted BackupThreema uses encryption algorithms to keep your files safe as well as prevent unauthorized access.
    Screenshot
    Screenshot
  9. Nextcloud Talk icon

    Nextcloud Talk

    • Online
    • Android
    • iPhone
    • iPad
    • Self-Hosted
    • Nextcloud
    82 alternatives to Nextcloud Talk 

    Nextcloud Talk is a fully self-hosted audio/video and chat communication service. It features web and mobile apps and is designed to offer the highest degree of security while being easy to use.

     Suggest and vote on features
    Features
    1.  Screen SharingYou can use Nextcloud Talk to share your screen with your colleages or friends.
    2.  End-to-End EncryptionNextcloud Talk has E2E Encryption, for entire or parts of the app.
      Screenshot
      Screenshot
    • Telegram X icon

      Telegram X

      • FreeOpen Source
      • Android
      • Android Tablet
      • Telegram
      208 alternatives to Telegram X 

      An alternative Telegram client based on TDLib, with higher speed, slicker animations and experimental features.

       Suggest and vote on features
      Features
      1.  Ad-freeTelegram X doesn't contain any form of external advertising.
      2.  Cloud SyncSync your data (notes, documents, bookmarks, etc.) across your different devices and to the cloud.
      3.  Support for ThemesYou can use themes and templates to change the look and feel of Telegram X.
      4.  VoiP CallsTelegram X allows you to make voice calls over Internet using the Voice over Internet Protocol (VoIP).
      Screenshot
      Screenshot
    Showing 10 of 48 alternatives
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