How to block porn on Android
The phone is where most of this happens, and it is the device people most often leave unprotected. Android gives a blocker enough room to do the job properly.
Kellet does not run on Android yet. It lands at the end of September 2026. Everything below is worth knowing whichever blocker you choose, but Kellet itself is Windows only today. See what runs where.
Use an Android app that filters at the network level so it covers every browser and app, add app blocking for the ones you do not want available at all, and make sure removing it waits out a cool-down rather than being a long-press away.
How to do it
Filter the whole device, not one browser
Android lets an app filter traffic for the entire device. That covers Chrome, Samsung Internet, in-app browsers inside social apps, and everything else in one go.
Turn on content screening
The same argument as on desktop: a blocklist cannot know about a domain registered this morning. Content screening judges what actually loaded.
Block the apps, not just the sites
Plenty of what people are trying to avoid is inside apps rather than on websites. Block the specific apps that are the problem, and be honest with yourself about which ones those are.
Schedule the hours that matter
Lock the device overnight if that is when it happens. A schedule you set on a Tuesday afternoon does not need to be re-decided at midnight.
Make uninstalling wait
Android makes app removal fast by design. Removal protection turns that into a request with a timer, which is the only version that survives a bad night.
Why the phone is the harder problem
A laptop gets closed and put away. A phone is in your hand last thing at night, in bed, in the dark, at precisely the hour your judgement is worst. Any plan that protects the computer and leaves the phone alone is protecting the wrong device.
It is also the device where the in-app browser matters. Tapping a link inside a social app opens a browser you never chose, which is exactly why device-level filtering beats anything browser-specific.
What Android can and cannot do
Android permits genuine system-wide filtering, app blocking, device lock and scheduling, which covers most of what you need. It permits continuous on-screen detection as well, through the accessibility service, though that reads everything on screen and costs battery to run.
So it is a choice rather than a gap. On Android the network and content layers do the work by default, and screen detection is there to switch on if you want the phone watched as closely as a desktop.
Android built-ins are not enough on their own
Digital Wellbeing, screen-time limits and SafeSearch are all useful and all trivially reversible. They are designed to inform you, not to hold a line against you, and they can be switched off in seconds by the person they are meant to constrain.
Use them if you like, but do not mistake them for enforcement. The difference is entirely in how hard it is to undo them in a bad moment.
Common questions
Does it work on any Android phone?
Will it drain my battery?
Can I block porn on my child’s phone with this?
What happens if I factory reset the phone?
Related guides
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