NetGuard

Overview

NetGuard is an application for complete network protection on Android. It enables users to control network connectivity for individual apps, helping limit unauthorized access and manage background data use. The tool supports both IPv4 and IPv6 along with TCP and UDP protocols. It works on devices running Android 5.1 and later without needing root privileges. Additional options include blocking connections during roaming, allowing access only when the screen is on, and logging network activity per app and address. The app is fully open source and includes light and dark material themes.

What You Can Do

⭐ Users can block or allow internet access for specific applications through straightforward toggles that apply immediately to network traffic.

⭐ The logging feature records network usage details for each address and application, providing visibility into data connections over time.

⭐ Notifications can be enabled to alert when an application attempts to access the internet, supporting informed decisions about permissions.

⭐ Roaming blocks prevent connections while traveling, and screen-on allowances restrict activity to active device use periods.

⭐ System applications can be blocked selectively, and network sharing is supported for tethered or shared connections.

Using the App

NetGuard starts and stops network filtering based on device operating system behavior, which affects activation speed. It only manages connectivity and does not alter the internal functions of apps that users choose to run. Configuration covers IPv4/IPv6 TCP/UDP traffic, with separate settings for roaming, screen state, and system apps. Theme selection offers light or dark material designs, and logs can be reviewed directly in the interface for usage patterns.

Why It May Appeal

✅ The application requires no root access, making it available on a wide range of devices including recent Android versions.

✅ It contains no advertisements, performs no tracking or analysis, and makes no external connections itself.

✅ Full open-source availability allows inspection of the code, and active development continues with ongoing support.

Things to Consider

❎ Network startup and shutdown durations depend on the specific Android operating system version in use.

❎ The app controls only network connectivity and does not stop applications from executing their core functions when permitted.