NoRoot Firewall, developed by Grey Shirts, is an Android network firewall that lets users control app internet access without rooting their device. It is designed for people who want to stop apps from sending data without permission while still allowing trusted connections to work normally. However, LTE users may experience issues because IPv6 is not supported yet.

What the app does

When an app tries to access the internet, NoRoot Firewall can show a real-time prompt with Allow and Deny options. Users can also create more specific rules using IP addresses, host names, or domains, giving them control over where individual apps are allowed to connect.

How it helps reduce unwanted connections

By making app connection attempts visible, NoRoot Firewall helps users catch and block unwanted background activity. Its filtering options can reduce unnecessary data exposure, especially from apps that try to connect without clear user awareness. The app also requests minimal permissions and does not access the user’s location or phone number, though it should still be treated as a connection-control tool rather than a complete privacy or security solution.

Direct app access control

NoRoot Firewall is a practical option for Android users who want direct control over app internet access without modifying their device. It works best for users who are comfortable reviewing connection prompts and deciding which requests to allow or deny.