How to Block Porn on Android: Complete 2026 Guide

The short answer. There are three free ways to block porn on an Android phone. Private DNS takes two minutes and works in every app. Google Family Link adds app and Play Store control for a child's phone. A blocker app adds a filter you can switch on and off. All three can be undone in under a minute by the person who set them up. If that person is you, and you are trying to stop, you need a fourth option: a block with a timer instead of an off switch. This guide covers all four, with the exact taps, and where each one breaks.

Method 1: Private DNS (free, two minutes, every app)

Android 9 and newer can send every web request through a filtering DNS service. The filter then refuses to resolve adult domains, so they fail to load in Chrome, in Samsung Internet, inside apps, everywhere on the phone. This is the fastest free block there is.

On a Pixel or most Android phones:

1. Open Settings.
2. Tap Network & internet.
3. Tap Private DNS. On some phones it sits under Advanced.
4. Choose Private DNS provider hostname.
5. Type family-filter-dns.cleanbrowsing.org and tap Save.

On a Samsung phone:

1. Open Settings.
2. Tap Connections.
3. Tap More connection settings.
4. Tap Private DNS.
5. Choose Private DNS provider hostname, type family-filter-dns.cleanbrowsing.org, tap Save.

Open a browser and try an adult site. It should fail to load with a connection error. If it still loads, the phone may be using a VPN or a browser with its own DNS. Both are covered below.

Other family filter hostnames that work the same way: family.adguard-dns.com and family.cloudflare-dns.com.

What it blocks: known adult domains in every browser and every app, on Wi-Fi and on mobile data.

Where it breaks:

• The same five taps switch it off. There is no passcode on Private DNS.
• Any VPN app, including the free one built into the Opera browser, sends traffic around it.
• Some browsers, Firefox for one, can be set to use their own DNS and ignore the phone's.
• It filters domains, not content. Adult material inside Reddit, X, or Telegram is not on a blocked domain.

Method 2: Google Family Link (free, fifteen minutes, for a child's phone)

Family Link is Google's parental control. It filters Chrome, restricts what the Play Store will install, forces SafeSearch, and reports screen time to a parent's phone. It is built for supervising a child's account, not for an adult managing their own phone.

Set it up:

1. On the parent's phone, install Google Family Link from the Play Store and tap Get started.
2. Choose Child, then link the child's Google account, or create one.
3. On the child's phone, sign in with that account and approve supervision when asked.
4. Back on the parent's phone, open the child's profile and tap Controls.
5. Tap Google Chrome and turn on Try to block mature sites.
6. Tap Google Play, set the content ratings, and switch off Allow app installation from unknown sources.
7. Under Apps, block any browser other than Chrome, and block VPN apps if any are installed.

What it blocks: mature sites in Chrome, app installs above the rating you set, sideloaded apps, and SafeSearch is locked on.

Where it breaks:

• The web filter covers Chrome only. Any other browser already on the phone is unfiltered, which is why step 7 matters.
• Supervision ends automatically when the child turns 13 unless you extend it.
• A factory reset removes it.
• A second Google account added to the phone is not supervised.
• It cannot be used on your own phone. A supervised account has to belong to a child.

Method 3: A blocker app (free, until you uninstall it)

Apps like BlockerX, Detoxify, and BlockSite install a VPN on the phone and filter traffic through it, or replace the browser with a filtered one. They are quick to set up and some have useful extras such as app time limits.

Where they break: the person who installed the app can uninstall it. Most run through a VPN, and Android lets you disconnect a VPN from the quick settings panel. Some add a "password" or a friend's approval to uninstall, but the password reset goes to an email you control. In practice, the app lasts until the first bad night.

Why all three fail the same way

Every free method is set up by you, so it can be removed by you. In a calm moment that sounds fine. During an urge it is the entire problem. The part of the brain that made the decision in the morning is not the part that is in charge at 1am, and that part knows exactly where the settings are.

The common ways a free block gets undone on Android, all in under a minute:

• Switching Private DNS back to Automatic.
• Disconnecting the blocker's VPN from the notification shade.
• Installing a free VPN app.
• Opening a browser that is not filtered, or installing one.
• Turning on Install unknown apps and sideloading a browser.
• Adding a second Google account.
• Factory reset.

Nobody is told when any of this happens. The block disappears, and reappears before anyone notices.

If you are protecting a young child who will not look for workarounds, Family Link plus Private DNS is a good setup and it costs nothing. If you are protecting a teenager, or yourself, the question is not which filter is strongest. It is whether the block survives the person who wants it gone.

Method 4: A block that holds (QuitPorn)

QuitPorn is built for the case the free methods cannot handle: the person who set up the block is the person who will try to remove it. It works differently in three ways.

The lock has a timer, not a switch. You choose a period in a clear moment: 30 days on the monthly plan, 180 days on the six-month plan, up to 365 days on the annual plan. For that period the filter stays on. There is no setting to turn it off early, and uninstalling the app during the lock is blocked.

There is no passcode to find. The lock is released by our server when your period ends. There is no code to guess, write down or ask support for, so there is nothing to give in to.

It covers the whole phone. The filter runs at the system level under every browser and app, not inside one of them. Installing a VPN or another browser does not get around it, and you can add your own sites and apps to the block list. The same lock runs on up to 5 devices from one dashboard: Android, iPhone, iPad, Windows and Mac. A phone with no block is the usual bypass for a laptop with one, so the lock has to be on all of them.

Setup on Android:

1. Sign up at quitporn.io and open the dashboard on the phone.
2. Download the Android app from the dashboard. It installs from QuitPorn directly, not the Play Store, and the dashboard walks through Android's install prompts. If Play Protect blocks the install, the setup page shows the two taps that let it through.
3. Follow the guided setup. It takes under fifteen minutes with a step-by-step video, and it asks for the permissions the lock needs: the VPN for filtering, and accessibility access to keep the settings from being changed.
4. Choose the lock length and confirm. From that moment the block is on until the timer ends.

Plans start at 10 dollars a month on the annual plan, 15 dollars month to month, with a seven-day money-back guarantee. See the plans.

How to block porn on a Samsung phone

Samsung phones run Android with a different settings layout, so the free methods above work but the taps differ.

• Private DNS: Settings, Connections, More connection settings, Private DNS. Then the hostname as in Method 1.
• Samsung Internet has its own content blocker menu. It blocks ads, not adult sites. Use Private DNS instead, or delete Samsung Internet and Chrome and keep one browser.
• Samsung Kids is a child mode with an approved app list. It is fine for young children and easy for older ones to leave with the parent's PIN.
• Secure Folder is a hidden space for apps. If you are locking a phone for a teenager or yourself, check it does not contain a second browser.

QuitPorn's lock works the same way on Samsung as on any other Android phone.

How to block porn on Android permanently

Nothing on a phone is permanent if the owner can change settings, so "permanently" really means "until the timer ends, with no way to end it early". That takes three things: a filter under every app, a way to stop new apps getting around it, and no way to switch it off early. Private DNS gives the first for free. Family Link can give the second on a child's phone. Only a locked blocker gives all three on your own phone. Set the longest period you are willing to commit to, then decide again when it ends, in daylight.

Comparison

Frequently Asked Questions

How do I permanently block adult sites on Android?

Set Private DNS to a family filter, delete every browser except one, and turn off installs from unknown sources. That blocks adult sites until someone changes those settings back. For a block that cannot be changed back for a set period, use a locked blocker that nobody can switch off early, such as QuitPorn, and set the lock for as long as you are willing to commit.

How can I block porn on my phone for free?

Private DNS is the best free option on Android. Settings, Network & internet, Private DNS, then enter family-filter-dns.cleanbrowsing.org. It filters every browser and app in two minutes. It can be switched off in the same menu, so it protects against accidental exposure, not against yourself.

How do I stop watching adult content on my phone?

Two steps. First, make it hard to reach: Private DNS, one browser, no VPN apps. Second, make it impossible to undo when an urge hits, because that is when the first step gets reversed. A lock with a fixed period that nobody can end early removes the decision. If you have already tried to stop and it did not hold, the porn addiction test takes two minutes and tells you how far along the pattern is.

How can I block adult content on my Samsung phone?

Settings, Connections, More connection settings, Private DNS, then a family filter hostname. Delete extra browsers, and check Secure Folder for hidden ones. Samsung Kids works for young children. For a block that holds on your own Samsung phone, QuitPorn works the same as on any Android.

Can you block porn on Android without an app?

Yes. Private DNS needs no app and covers every browser and app on the phone. Its weakness is that it is a setting, and settings can be changed back.

Can kids bypass parental controls on Android?

Yes, if they want to. Another browser, a free VPN, a second Google account, or a factory reset each defeat Family Link. Blocking browser and VPN installs in Family Link closes most of that for younger children. Teenagers who are determined need a lock that does not depend on a parent's PIN.

Does QuitPorn slow down my phone?

The filter runs on the phone itself rather than routing traffic through a remote server, so browsing speed and battery are not noticeably affected.

Which Android phones does QuitPorn work on?

Any phone running a current version of Android, including Samsung, Pixel, OnePlus, Motorola, Xiaomi, and others. The app is downloaded from your QuitPorn dashboard rather than the Play Store.

Conclusion

Private DNS is the two-minute free block and every Android owner should have it on. Family Link turns a child's phone into a supervised one. Both are undone in a minute by anyone who knows where the setting is, and both are fine for the people who will not go looking.

For a teenager who will, or for yourself, a filter is not the answer, because you will be the one turning it off. What works is a block that runs under every app, cannot be switched off early, and ends on a date you chose when you were thinking clearly. That is what QuitPorn does on Android, and on every other device you own. Plans start at 10 dollars a month with a seven-day money-back guarantee, and setup takes under fifteen minutes.

If you are not sure how serious the problem is, start with the free two-minute test. If you are sure, set the lock.