NoRoot Firewall
Firewall for unrooted Android devices.
NoRoot Firewall is an Android application that filters network traffic on devices without root access. It uses the Android VPNService to modify the routing table, acting as a local proxy rather than establishing a real VPN connection to a server. This allows it to apply filtering rules to traffic from other apps.
The app provides global, pre-, and post-filters, which can be configured as allow or deny rules for specific hosts. Pre-filters run before each app's rules and post-filters run after them, supporting both whitelist and blacklist setups. The FAQ documents known limitations, including no support for IPv6 or UDP packet filtering, ping packets not passing through without root, and issues with tethering and AutoStart on some devices. It also notes that the tun module must be present on the device.
NoRoot Firewall is intended for Android users who want traffic filtering without rooting their device. The pages do not describe a free plan, trial, or specific editions.
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