FireWall Blocks vs Port Knocker
Side-by-side comparison of two open source alternatives
FireWall Blocks
FireWall Blocks is a simple, open-source Android firewall that blocks app internet access using either Shizuku or a local VPN, with no root requirement.Features:Dual Mode: Choose between the efficient Shizuku mode (recommended) or the no-setup-required VPN mode. You can even use them at the same time!Network Monitoring Screen: Real-time traffic tracking via local VPN. See which apps are actively trying to access the network and block or allow connections directly from the live monitoring log.Per-App Rules: Control Wi-Fi and Mobile Data access for each app individually.Import/Export: Save and load your firewall rules as a simple .json file.Sorting: Advanced filtering based on user apps, system apps, network permission, disabled status, uninstalled leftover rules, or blocked-placement priority.Efficient: The app doesn't need to be constantly running in the background when utilizing Shizuku mode.Elegant Reapplying: Hassle-free user experience on startup.App search and moreHow to Use:Enable the Firewall: Press the "Enable" button on the main screen.Choose Mode: Toggle between "Shizuku" (requires setup) or "VPN" (works instantly).Block Apps: Tap the Wi-Fi or Data icons next to any app to block its access.Network Monitoring: Access "Network monitoring" from the top-right menu to see app connection requests in real-time.Note: After rebooting your phone, for Shizuku mode, you must first start Shizuku, then re-open the app to re-apply the rules.
Port Knocker
A basic port knocker client. Also includes a widget and the ability to choose an application to launch after knocking.
| Feature | FireWall Blocks | Port Knocker |
|---|---|---|
| License | MIT | Apache-2.0 |
| Install sources | GitHubIzzyOnDroid | F-DroidGitHub |
| Categories | Password ManagerBrowser | Password ManagerBrowser |
| Features | Ad-FreeOpen SourceNo Tracking | Ad-FreeOpen SourceNo Tracking |
| Platforms | Android | Android |
| Website | ||
| Source code |