Which app are you weighing NetCage against?These are the apps people look at when one app should lose its internet. Each row says only what that app’s own pages state, with the link, so you can check us.Last checked 7 November 2026You can’t install NetCage todayIt has no store listing and no public download, so nothing on these pages links to an install. It has no published price either. Everything shown for NetCage is what its code does, read from that code.These state a block for a whole appEach of these can cut an app off. The rows say what else comes with it.

NetGuard. A no-root Android firewall that allows or denies internet per app on Wi-Fi and mobile, with paid filtering by address. Needs no root: Yes. Open source: Yes.

Rethink: DNS + Firewall + VPN. An open-source Android app that combines a DNS resolver, a per-app firewall and WireGuard VPN connections. Needs no root: Not stated on the pages we checked. Open source: Yes.

AFWall+. A front end for the iptables firewall on rooted Android phones, choosing which apps may use Wi-Fi, mobile data, roaming, LAN and VPN. Needs no root: No. Open source: Yes.

InviZible Pro. An Android privacy app bundling Tor, DNSCrypt and I2P, with a firewall that allows or blocks internet per app. Needs no root: Yes. Open source: Yes.

Karma Firewall. A small open-source Android firewall on F-Droid: pick the apps whose traffic you want blocked, with no IP or port rules to learn. Needs no root: Not stated on the pages we checked. Open source: Yes.

GlassWire Data Usage Monitor. A data usage monitor for Android with graphs, data-limit alerts and a VpnService-based firewall for blocking apps. Needs no root: Not stated on the pages we checked. Open source: Not stated on the pages we checked.

PCAPdroid. An open-source network monitor for Android that captures and analyses app traffic without root, with a paid firewall add-on. Needs no root: Yes. Open source: Yes.

Firewall No Root: App Firewall. A no-root Android firewall from Germany that allows or blocks internet per app, separately for Wi-Fi and cellular, with optional host rules and a DNS changer. Needs no root: Yes. Open source: Not stated on the pages we checked.

These state no whole-app block on the pages we checkedThey watch or filter traffic inside apps you keep online. If that’s what you’re after, NetCage doesn’t do it.

TrackerControl. A research project's Android app that shows which tracking companies your apps contact and blocks trackers through a local VPN. Needs no root: Yes. Open source: Yes.

Blokada. An ad and tracker blocker for Android and iOS, with a free open-source app and subscription editions for cloud blocking, family controls and VPN. Needs no root: Yes. Open source: Yes.

AdGuard Ad Blocker for Android. An ad blocker for Android that filters ads and trackers in browsers and apps through a local VPN, sold as a yearly or lifetime licence. Needs no root: Yes. Open source: Not stated on the pages we checked.

NetCage on the same rows

Blocks one chosen app’s internet: Yes

Keeps blocking while the app is in the background: Yes

Needs no root: Yes

Open source: No

Shows ads: Partly. Promotions for the developer’s own apps only. No ad network.

In-app purchases: No

Where NetCage falls short

It takes Android’s one VPN slot. While NetCage is up you can’t run another VPN, and connecting one stops NetCage.

Apps that share an Android user ID are caged together, and there’s no way to separate them.

A caged app can still hand a link to a browser you haven’t caged, and that browser connects as normal.

It doesn’t work inside an app: no domain rules, no block lists, no traffic log. An app is caged or it isn’t.

NetCage isn’t open source, so you can’t read its code.

Every limit, in the documentation