While powerful, there are a few technical limitations to keep in mind:

For many, the primary appeal is . Traditional firewalls often require "rooting" your phone, which can void warranties and create significant security vulnerabilities. This app uses the official Android VpnService API to filter traffic locally, making it a safer alternative for standard users. Important Considerations

NoRoot Firewall for Android - Download the APK from Uptodown

: Decide exactly which apps can use Wi-Fi, mobile data, or both. You can set rules like "Wi-Fi only" to prevent heavy background data usage on cellular plans.