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ArcaneChatSignal
Free

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

 Free

Free; developed by a nonprofit funded by grants and donations

Android Android, iOS, Windows, macOS, Linux
  • No phone number needed to sign up
  • End-to-end encryption and consent-based contact
  • End-to-end encryption on every message and call using the open source Signal Protocol
  • No ads, affiliate marketers or tracking
  • Android only; other platforms must use Delta Chat
  • Maintained mainly by one developer
  • Requires a phone number that can receive an SMS or phone call to register
  • Desktop app requires Signal to be installed on a phone first
Downloadable app Downloadable app
Open source Open source
License: GPL-3.0 License: AGPL-3.0
Not stated if an account is needed Account needed
Not stated if it works offline Needs internet

Checked October 2, 2026

Checked September 20, 2026

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