ShizuWall is a lightweight, privacy-first open-source firewall for Android 11+. Powered by Shizuku, it completely cuts off network access for specific apps using Android's native framework.
Unlike traditional non-root firewalls, ShizuWall doesn't use a dummy VPN tunnel. No speed loss, no extra battery drain.
Fully local and open-source. Zero data leaves your device, no analytics, no tracking, and no telemetry.
Uses Android's native connectivity framework (Chain-3) via Shizuku to completely block network access at the system level.
Watch this quick walkthrough to see how easily you can block apps in under a minute.
Requires Android 11+ and Shizuku to function.
A few products I personally use and highly recommend. Purchasing through these links helps support the project!