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SessionArcaneChat
Free

Free and open source under the GPL 3.0, run by the Session Technology Foundation.

 Free

Free and open source, with no ads, funded by donations.

Windows, macOS, Linux, Android, iOS Android
  • No phone number or email needed; the account is a random ID
  • Onion routing hides your address from recipients and from the network
  • No phone number needed to sign up
  • End-to-end encryption and consent-based contact
  • Losing your recovery phrase means losing the account with no reset
  • Delivery can be slower than a centralised messenger
  • Android only; other platforms must use Delta Chat
  • Maintained mainly by one developer
Downloadable app Downloadable app
Open source Open source
License: GPL-3.0 License: GPL-3.0
No account needed Not stated if an account is needed
Works offline Not stated if it works offline

Checked September 21, 2026

Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.