Keychat Alternatives

Keychat is described as '- Senders send messages stamped with Bitcoin ecash to Nostr relays. The Nostr relays collect the Bitcoin ecash, then deliver messages to receivers' and is a instant messenger in the social & communications category. There are more than 50 alternatives to Keychat for a variety of platforms, including Android, iPhone, Mac, Windows and Linux apps. The best Keychat alternative is Signal, which is both free and Open Source. Other great apps like Keychat are Proton Mail, Telegram, Element and Gmail.

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Alternatives list

  2. RetroShare icon

    RetroShare

     167 likes

    Open source, decentralized platform enabling encrypted chat, secure voice and video calls, anonymous file sharing with swarming, censorship-resistant forums, channels, link sharing, and offline messaging. Uses OpenPGP and OpenSSL for robust privacy and security.

    143 RetroShare alternatives

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • BSD
    • OpenPGP
    Network tab with contact list and broadcast subtab open. The subtab shows text and image sent by one contact to all connected contacts.
     
  4. Mattermost icon

    Mattermost

     255 likes

    Self-hosted collaboration platform featuring chat, workflow automation, voice and video calling, screen sharing, AI capabilities, broad third-party integration support, cross-platform apps, compatibility with Slack imports, and flexible deployment options for secure team communication.

    139 Mattermost alternatives

    Cost / License

    • Paid
    • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Self-Hosted
    • JavaScript
    • Software as a Service (SaaS)
    • Go (Programming Language)
    • Cloudron
    Mattermost screenshot 1
     
  5. Ad
    Screenshot
    StartMail icon
    StartMail

    Privacy-focused email service offering easy one-click PGP encryption, 20 GB storage, disposable email addresses, and compatibility with IMAP/SMTP while adhering to Dutch privacy laws to secure data and communications effectively.

    https://www.startmail.com
    Learn More
  6. TeamSpeak icon

    TeamSpeak

     216 likes

    Embrace lag-free, secure voice chats with TeamSpeak, offering cross-platform compatibility and low CPU usage. Enjoy advanced audio controls, push-to-talk, in-game overlay, and security-focused privacy features, tailored for gamers seeking seamless communication.

    66 TeamSpeak alternatives

    Cost / License

    • Freemium
    • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Flathub
    • Cloudron
    TeamSpeak screenshot 1
     
  8. Posteo icon

    Posteo

     89 likes

    Web- and IMAP-based email service. 4GB cost 1€/month. Information is hosted on encrypted hard drives. Electricity from renewable resources is used.

    79 Posteo alternatives

    Cost / License

    • Paid
    • Open Source

    Application types

    Platforms

    • Online
    Drag and drop
     
  10. Rocket.Chat icon

    Rocket.Chat

     161 likes

    Open-source chat server supporting real-time group, direct, and private messaging, video calls, file sharing, helpdesk chat, API integrations, desktop notifications, emojis, LDAP authentication, cross-platform apps, and customizable extensions for teams.

    149 Rocket.Chat alternatives

    Cost / License

    • Freemium
    • Open Source (MIT)

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • iPad
    • Self-Hosted
    • Cloudron
    Rocket.Chat screenshot 1
     
  13. Rakuten Viber icon

    Rakuten Viber

     336 likes

    Offers secure messaging with end-to-end encryption, unlimited free calls, group chats for up to 250 members, rich media sharing, emoji reactions, AR lenses, self-destruct messages, affordable international calls, community channels, and robust privacy across devices.

    169 Rakuten Viber alternatives

    Cost / License

    • Freemium
    • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • iPhone
    • Android Tablet
    • HUAWEI AppGallery
    • iPad
    • Android Wear
    • Samsung Galaxy Store
    Rakuten Viber screenshot 1
     
  14. FluffyChat icon

    FluffyChat

     42 likes

    Encrypted messenger supporting multi-platform access, unlimited group and private chats, file and voice message sharing, decentralized operation, open-source code, custom themes including dark mode, advanced moderation, push notifications, and no advertisements.

    197 FluffyChat alternatives

    Cost / License

    Application types

    Platforms

    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Snapcraft
    • Matrix.org
    • Flathub
    • Ubuntu Touch
    • F-Droid
    FluffyChat screenshot 1
     
  15. Zoom icon

    Zoom

     159 likes

    Provides robust video meetings with up to 100 participants, screen sharing, real-time chat, cloud recording, whiteboard and document collaboration, AI-generated meeting summaries, seamless device switching, phone and messaging integration, and multitasking support.

    242 Zoom alternatives

    Cost / License

    • Freemium
    • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Apple Watch
    • Snapcraft
    • Android Auto
    • Apple TV
    • Flathub
    • Samsung Galaxy Store
    • Android TV
    • Apple Car Play
    Zoom screenshot 1
     
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