How it plugs in
—Public API
NoOpen source
YesFree tier
Signal on Personal firewalls6.2#6 of 17
AFWall+ is an open-source firewall app that controls which apps can access the internet on rooted Android devices.

Pricing
- FreeOpen-source Android firewallFree
- AFWall+ (Donate)Fully functional donate version · Import All with preferences · Log Statistics/History$9.99 one-time
As github.com lists them, checked 5 Oct 2026.