Parental control that covers every app, not one browser
Most parental controls filter a single browser or block a list of websites. Children do not encounter explicit content that way. ScreenBlock protects the whole screen — every app, every network, locked behind a PIN.
The problem
Why most parental controls miss
Parental control tools were designed for a web that no longer exists — one where a child sat at a desktop and typed a website address. Today the exposure happens somewhere else entirely, and the standard tools cannot see it.
Inside social apps
An explicit image in a Reddit feed, a Telegram group, an Instagram DM or a Snapchat message never touches a blocked domain. DNS and router filters see encrypted traffic to a permitted app and let it straight through.
Off the home network
Router-level filtering ends at the front door. On mobile data, school Wi-Fi or a friend's network, a device protected only by the router is a device with no protection at all.
New and unlisted sites
Blocklists only know what someone has already catalogued. Thousands of new sites appear constantly, and every one is permitted until a list somewhere gets updated.
The next installed browser
A browser-based filter protects that browser. Installing a different one — or opening a link inside an app's built-in web view — routes around it in a single tap.
The approach
Filter the screen, and the blind spots disappear
ScreenBlock does not maintain a list of banned websites. It analyses what is actually being drawn on the display, using an AI model that runs on the phone itself. When the model recognises explicit imagery, an overlay covers it immediately.
Because the check happens at the screen rather than the network, the source becomes irrelevant. It does not matter which app rendered the image, whether the site was on anyone's list, or which network the phone is using.
- Covers every app on the device — browsers, social media, messaging, galleries, video players, and any app installed later.
- Travels with the phone — protection works identically on home Wi-Fi, school Wi-Fi, mobile data, and with no connection at all.
- Catches content nobody catalogued — the model recognises imagery, so a brand-new site is treated exactly like a known one.
- Locked behind a PIN — protection cannot be paused, reconfigured, or uninstalled around without your code.
- Works in incognito — private browsing hides history, not pixels. ScreenBlock filters both modes identically.
A note on trust
Protection without surveillance
ScreenBlock deliberately has no monitoring features. There is no activity log, no screenshot history, no dashboard showing you what your child looked at, and no reports sent to your inbox.
That is a design decision, not a missing feature. Monitoring tools create their own harm: they damage trust when discovered, they build a permanent record of a child's private moments, and that record becomes a liability the moment it leaks. ScreenBlock blocks the content and remembers nothing about it.
What this means practically: you can tell your child truthfully that the app on their phone stops explicit images and does not report their browsing to you. That is a much easier conversation than the one about monitoring software — and it is far more likely to survive contact with a teenager.
Setup
Setting it up on your child's phone
Two minutes, and nothing to maintain afterwards.
Install from Google Play
Install ScreenBlock on the child's device and open it. Grant the overlay and screen-access permissions when prompted.
Set a PIN they don't know
Choose a code your child has not seen you type. This is what stops the filter being switched off five minutes later.
Start protection
Tap Start. A persistent notification confirms the filter is running — leave it enabled so the service stays alive.
Explain it honestly
Tell them what it does and what it doesn't. "It blocks explicit images and doesn't track you" lands far better than a discovered secret.
FAQ
Questions parents ask
What is the best parental control for explicit content on Android?
The most reliable approach is a screen-level filter rather than a website blocklist. Blocklists only cover catalogued domains and stop working off the home network. A screen-level filter such as ScreenBlock analyses what is drawn on the display, so it covers every app, every website including brand-new ones, and keeps working on mobile data and offline.
Can my child turn it off?
Not without the PIN. Set a PIN during setup and protection cannot be paused, reconfigured, or disabled without it. Choose a code your child does not know and has not watched you enter.
Can I see what my child has been viewing?
No, and that is deliberate. ScreenBlock blocks explicit content but records nothing — no activity log, no screenshot history, no reporting dashboard. Frames are analysed in memory and discarded immediately.
Does it work when they're at school or a friend's house?
Yes. ScreenBlock runs entirely on the device and does not depend on your home network, a VPN, or an internet connection. Protection travels with the phone onto school Wi-Fi, mobile data, and any other network.
Does it work inside Instagram, Snapchat and Reddit?
Yes. Because ScreenBlock analyses the screen rather than network traffic, it filters imagery inside social apps, messaging apps, video players and photo galleries — exactly where DNS and router filters have no visibility.
What age is this appropriate for?
ScreenBlock is useful on any device a child or teenager uses unsupervised. It is not a substitute for conversations about online safety — it is a safety net for the moments those conversations cannot cover.
Get started
Protect the whole screen, free
ScreenBlock is free and currently in closed beta on Google Play.