NetGuard - no-root firewall

Marcel Bokhorst, FairCode BV

In-app purchases

About this app

NetGuard is an internet security app, which offers simple and advanced ways to restrict apps' access to the internet.

Applications and addresses can individually be allowed or denied access to your Wi-Fi and/or mobile connection. Root permissions are not required.

Blocking access to the internet can help:

• reduce your data usage
• save your battery
• increase your privacy

Features:

• Simple to use
• No root required
• 100% open source
• No calling home
• No tracking or analytics
• No advertisements
• Actively developed and supported
• Android 5.1 and later supported
• IPv4/IPv6 TCP/UDP supported
• Tethering supported
• Optionally allow when screen on
• Optionally block when roaming
• Optionally block system applications
• Optionally notify when an application accesses the internet
• Optionally record network usage per application per address
• Material design theme with light and dark theme

PRO features:

• Log all outgoing traffic; search and filter access attempts; export PCAP files to analyze traffic
• Allow/block individual addresses per application
• New application notifications; configure NetGuard directly from the notification
• Display network speed graph in a status bar notification
• Select from five additional themes in both light and dark version

There is no other no-root firewall offering all these features.

If you like to test new features, you can participate in the test program: https://play.google.com/apps/testing/eu.faircode.netguard

All required permissions are described here: https://github.com/M66B/NetGuard/blob/master/FAQ.md#user-content-faq42

NetGuard uses the Android VPNService to route traffic to itself, so it can be filtered on-device instead of on a server. Only one app can use this service at the same time, which is a limitation of Android.

The full source code is available here: https://github.com/M66B/NetGuard

Ratings and reviews

This app is awesome. I love the fact you can block system apps from internet access. I'd say 90 percent of the apps on a phone ( at least my phone) don't need internet access to function, especially apps that just connect to send your location. I really like the fact you don't need root access as I have a Samsung Fold and cannot root it without tripping Knox. There is no adds, and the premium features are worth the price to unlock them.

Thus far, the app is excellent. You do need to spend a few minutes on the setup. I would also like to know if Netguard is willing to give a small discount on PRO version, as I am semi-retired and do a mass of pro Bono work, and my monthly bill for Apps, internet, telephones, and miscellaneous is staggering. In closing, I repeat that the app is top notch.

This app has helped me go from using 500mb a month to 30mb. 94% reduction in unnecessary data usage! Not to mention the pro version is only $8.50 FOREVER. Such a helpful app for free and you pay pretty much nothing for extra features. Improvements could be a way to identify linked apps. When you disable or enable some of the apps access it applies to more than just that one because they are linked via the system. I mostly just want to know about it since you might not see it do that.

What’s new

* Improved compatibility for Android 15+
* Small improvements and minor bug fixes