AltME is described as 'The world's most powerful lightweight collaboration system' and is a Group Chat app in the office & productivity category. There are four alternatives to AltME for a variety of platforms, including Linux, Web-based, Android, iPhone and Self-Hosted apps. The best AltME alternative is Element. It's not free, so if you're looking for a free alternative, you could try Element or Zulip.
Provides secure collaboration with end-to-end encryption, supporting chat, voice, and video calls. Available on all major platforms, it enables digital sovereignty with a decentralized design and interoperability through bridges to systems like Slack and Teams. Includes enterprise-grade SaaS.
Zulip is the only modern team chat app that is designed for both live and asynchronous conversations. Zulip topics create a separate space for each discussion, so different conversations will never get in each other's way.
Conduit is a simple, fast and reliable chat server powered by Matrix. Conduit is an alternative to Synapse and tries to be lightweight and easy to install, but it is still in development.
DUST gives you control over your digital life. We believe online life is real life, so only you should control what is known about you. Our users are protected—free from worry of prying eyes, data mining, sketchy hackers, and the paranoia that your words could come back to haunt...
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