SimpleX Chat
The most private chat platform — no user IDs, double ratchet E2E encryption
Overview
SimpleX Chat is a privacy-first messaging platform that uniquely avoids assigning any permanent user identifiers, making it impossible to correlate a user's identity even with access to the server. It uses double ratchet end-to-end encryption for messages and supports text, voice, files, and video calls. Users can self-host their own SMP relay servers, and the mobile apps for iOS and Android are available on official app stores.
Where it falls short of Slack
- No web client; primarily mobile-focused with a desktop CLI and early-stage desktop app.
- Self-hosting the SMP server requires manual Haskell build or Docker and knowledge of relay configuration.
- No workspace/org structure, channels, or administrative tooling suitable for business teams.
- Integrations and bots ecosystem is minimal compared to Slack or Discord.
We list the gaps honestly so you can decide if the trade-off is worth owning your data.
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