Firewall

The core functionality of the application is to use VpnService; it does not establish remote connections to any servers. A local VpnService is created to segregate traffic and implement firewall functionality. It utilizes the standard features of the Android VpnService.

Only the applications and games you select yourself will have Internet access. All others will be deprived of network access. No ads in apps that shouldn't require internet connectivity by design. No more telemetry or background data transfers. It's a kind of ad blocker.

The Firewall app is based on the local Android VPN interface. No external connections. Blocked applications are routed to the local VPN interface, and their network requests remain within the device.

You can download the Firewall for Android right now, completely free and without root access.

You can now play games that are marketed as offline without any ads. Everything is set up very simply and intuitively; no need to watch any tutorial videos on YouTube.

You can download it to your phone right now, completely free.

For autostart, you need to select "Always-on VPN" in the VPN profile settings, and the firewall will start automatically upon reboot.