Compare software

AFWall+Karma Firewall
Free

Free and open source under the GPL.

 Free

Free and open source under Apache-2.0.

Android Android
  • Kernel-level filtering, so it does not consume the VPN slot
  • Very granular rules per network type, including tethering and LAN
  • Blocks traffic by app
  • Does not require internet permission
  • Requires root
  • Rule sets get complicated quickly and misconfiguration silently breaks apps
  • Android only
Downloadable app Downloadable app
Open source Open source
License: GPL-3.0 License: Apache-2.0
Not stated if an account is needed Not stated if an account is needed
Not stated if it works offline Not stated if it works offline

Checked September 22, 2026

Checked October 8, 2026

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