Cage any app's internet.Pick any installed app and cut its network access — foreground and background, Wi-Fi and mobile — with one switch. Nothing leaves your phone.One switch per appA rule is per app, not per domain. An app either reaches the network or it does not, and the change takes effect in about a second with no restart.Wi-Fi and mobile, separatelyBlock an app on mobile data while leaving it working on Wi-Fi, or block both. The rule follows the network your phone is actually using.Profiles and schedulesGroup apps into a profile and switch the lot at once, or let a schedule open and close the cage on its own — an evening, a working day, a study block.Nothing is inspectedPackets from caged apps are discarded without being read. NetCage keeps no browsing record, sets no DNS server, and sends nothing anywhere.Who this is forPeople who already know which app is the problem. NetCage does not analyse your habits, score your screen time or send you a weekly report — it takes the app you name and cuts it off, and it keeps doing that after a reboot, on mobile data, and while the app is in the background. It is equally useful in the other direction: a camera, a scanner or an offline tool that has no business calling home can be caged once and forgotten.It runs on your phone, and stays thereNetCage uses Android’s own VPN slot to route caged apps into a tunnel with nothing at the far end. There is no server in the path, so there is nothing to log. An account is optional, and only ever syncs your own setup between your own devices.Read moreThe pages below cover the whole product, and the documentation site goes further into setup and the edge cases.