Compare software

Global SendBriar
Free

Free and open source under GPL-3.0.

 Free

Free and open source under the GPL.

Android Linux, Android
  • No account or sign-up required
  • Direct device-to-device connections
  • Works with no internet at all, over Bluetooth or local Wi-Fi
  • No central server and no phone number or email needed
  • Still relies on relay servers for address discovery
  • Small, young project
  • Currently in maintenance mode, with limited new development
  • Both devices must be online at the same time to exchange messages
Downloadable app Downloadable app
Open source Open source
License: GPL-3.0-or-later License: GPL-3.0
No account needed Not stated if an account is needed
Not stated if it works offline Not stated if it works offline

Checked October 2, 2026

Checked September 22, 2026

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