How to Block Porn on iPhone: Screen Time Steps That Stick

Turning on the iPhone’s adult content filter takes two minutes. Keeping it on is the hard part, because the person who set it up is usually the same person who will want it off at midnight.

This guide shows how to block porn on iPhone with Apple’s built-in tools, step by step, and then covers what most guides skip: who should hold the passcode, the loopholes that quietly undo most blocks, and the apps the filter doesn’t reach. You don’t need to buy anything.

If you’re here because you want to quit and not just filter, pair this with our guide on how to stop watching porn. A block buys you time in weak moments. The rest of the plan decides what you do with that time.

How to block porn on iPhone: the short version

1. Turn on Limit Adult Websites in Screen Time.
2. Add the specific sites you know you visit to the Never Allow list.
3. Have someone you trust set the Screen Time passcode, and don’t let recovery point back to you.
4. Stop new apps from being installed, and delete extra browsers and the apps where it tends to start.
5. Turn on Sensitive Content Warning for images sent to you.

Each step is explained below, with the exact menus. They are written for iOS 26, which is what most iPhones run today. If you’ve already updated to iOS 27, see the note after step 1.

Step 1: Turn on the adult website filter

The filter lives inside Screen Time, Apple’s built-in set of limits and restrictions.¹

1. Open Settings and tap Screen Time. If you’ve never used it, turn on App & Website Activity when asked.
2. Tap Content & Privacy Restrictions and turn on the switch at the top.
3. Tap App Store, Media, Web, & Games, then tap Web Content.
4. Choose Limit Adult Websites.
5. Below Never Allow, tap Add Website and type any site you want blocked no matter what. Apple’s filter catches most adult sites automatically, but this list lets you add the ones it misses and the ones that are part of your pattern.

There is a third option, Only Approved Websites, which blocks everything except a short list you choose. It is too strict for most adults, but some people use it for the first weeks, when urges are strongest.

On iOS 27? Apple reorganized Screen Time in iOS 27 (September 2026). Its own documentation now describes website filtering under Apps & Websites, then Restrictions, then Filtering, where you’ll find the same Limit Adult Websites choice.² If the path above doesn’t match your screen, look for that one.

Once the filter is on, check two things in Safari. Try opening a site you know should be blocked, and open the tabs view to see whether Private browsing is still available. On recent versions of iOS, turning on the adult filter also removes Private Browsing, which closes one of the easiest workarounds.³

Step 2: Who should hold the passcode?

Here is the uncomfortable truth about every setting in step 1: if you know the Screen Time passcode, you can turn all of it off in ten seconds. So the passcode is the real lock.

To set it, go to Settings, tap Screen Time, scroll down, and tap Lock Screen Time Settings. You’ll enter a four-digit code twice.⁴

Hand the phone to someone else for this step. Good choices are:

• A close friend who knows what you’re working on and won’t make it awkward.
• Your spouse, if you’re both comfortable with that. Some couples find it builds trust. Others find it turns one partner into a warden. Talk about it before you decide.
• A sponsor, mentor, or someone from your church or group, if you have one.

Pick someone who will answer a text, because there will be legitimate reasons to unlock things: a new app for work, a blocked site that isn’t adult at all. Agree in advance that they’ll help with those, and that “just this once” at 11 p.m. isn’t one of them.

Watch out for passcode recovery

After you set the code, iPhone offers Screen Time Passcode Recovery, which lets you reset a forgotten code with an Apple Account.⁴ If that account is yours, you can reset the code yourself whenever you want, and the lock is gone. Apple only accepts the same Apple Account that was used when the passcode was set up.⁵

So when your phone asks, either skip recovery or let the person holding your code decide how to handle it. If they forget the code later, Apple Support can help.

If you really have no one to hold the code, pick a long random number, write it on paper, and put it somewhere inconvenient: a locked drawer at work, a sealed envelope in the car. It’s weaker than a person, but it still turns a two-second decision into a twenty-minute one.

What the iPhone filter doesn’t block

Apple’s filter works on websites in Safari and in browsers that respect it. It doesn’t read what’s inside most apps. That leaves several side doors, and they are where most blocks fail.

Loophole	Why it works	How to close it
Social apps with explicit content	Some social and messaging apps allow adult content inside the app, where the web filter can’t see it.	Delete the apps that are part of your pattern. For the rest, turn off explicit content in their own settings.
Other browsers	A browser that doesn’t use Apple’s filter can load sites Safari blocks.	Test every browser you have. Delete the ones you don’t need.
Installing a new app	Any new browser or app can open a fresh side door.	Block installs (see step 3).
Resetting the passcode	Passcode recovery tied to your own account undoes everything.	Skip recovery or let the code holder control it (see above).
Images sent to you	Photos in Messages, AirDrop, and similar features aren’t websites.	Turn on Sensitive Content Warning (see step 4).
Another device	The filter only covers the devices where it’s set up.	Set up the same limits on your iPad and computer, and filter your home Wi-Fi.

None of this means the filter is useless. Most relapses on a phone aren’t planned. They start with a tired scroll that drifts. A filter plus closed side doors stops the drift, and a deliberate workaround gives you time to notice what you’re doing.

Step 3: Close the side doors

Stop new apps from being installed

In Settings, go to Screen Time, then Content & Privacy Restrictions, then iTunes & App Store Purchases, and set Installing Apps to Don’t Allow.¹ When you need a new app, the person with your passcode can switch it on for a few minutes.

You can set Deleting Apps to Don’t Allow in the same place. That matters if you later add a filtering app, because deleting a filtering app usually removes its protection too.

Delete what feeds the habit

Be honest about where it usually starts. For many people it isn’t a search. It’s an explore page, a feed of short videos, or a platform where explicit accounts are one tap away. Delete those apps from your phone, at least for now. If you need one for work or family, use it on a computer instead, where it’s less private and less habitual.

Deal with other browsers

If you have Chrome, Firefox, or another browser, open a site you’ve blocked and see what happens. If it loads, delete that browser. Safari is enough for almost everything.

Step 4: Filter images, not just websites

Websites aren’t the only way explicit content arrives. Go to Settings, then Privacy & Security, then Sensitive Content Warning, and turn it on. Your iPhone will then blur sensitive images before you receive or send them, and ask before showing them.⁶

It won’t stop you from choosing to look. It gives you one more pause at exactly the moment a pause helps.

Should you use a porn blocker app?

Start with the built-in steps above. They’re free, and they cover most of what paid apps do on an iPhone.

If you want more, there are three kinds of tools, each with a trade-off:

• Blocker apps add their own website filters. Many rely on Apple’s Screen Time permissions, and those permissions can be switched off in Settings unless the Screen Time passcode protects them. Check that before paying.
• DNS or VPN filters route your internet traffic through a filtering service, so they can cover apps and browsers the built-in filter misses. They can also be removed, so protect them the same way: no app deletion, passcode held by someone else.
• Accountability apps send a report of your activity to a person you choose. They block less, but they replace secrecy with honesty, and for many people that is the strongest deterrent there is.

Whatever you choose, avoid anything that promises to make relapse impossible. Nothing does, and a tool that sells certainty makes a slip feel like proof that you’ve failed.

Setting it up on someone else’s iPhone

A lot of people searching for this are setting up a phone for someone else: a teenager, or a spouse who asked for help.

For a child or teen, use Family Sharing, so you manage the limits from your own phone and your child can’t change them. On iOS 26, go to Settings, then Screen Time, and tap your child’s name to reach the same settings described above. On iOS 27, Apple moved these controls to Settings, then Family, then your child’s name, and the website filter is on by default for children under 18.²

For a spouse or partner, only do it together, and only if they asked. Setting up restrictions on another adult’s phone without their knowledge breaks trust, and trust is the thing you’re both trying to rebuild. If your partner is struggling and you’re looking for how to support them without becoming their parent, read our guide on how to help someone with a porn addiction.

Is blocking porn enough to quit?

No. It helps, and for many people it’s the most useful single change they make. But a block works on the device, not on the reason you reach for it.

Most people don’t watch porn at random. They watch at predictable times (late at night, alone, stressed, bored, or unable to sleep) and in predictable places, usually in bed with the phone. Research on goal pursuit shows that deciding in advance exactly what you’ll do in a specific situation (“if it’s 11 p.m. and I’m restless, the phone goes to the kitchen”) makes follow-through noticeably more likely, with a medium-to-large effect across 94 studies.⁷ A block is one of those decisions. The others are yours to make: where the phone charges at night, who you text when an urge hits, and what you do instead.

For the next step, read our guides on how to stop watching porn, which covers the first ten minutes after an urge, and how to recover from porn addiction, which covers the longer road, including what to do after a slip.

Frequently asked questions

How do I turn off adult content on my iPhone?

Open Settings, tap Screen Time, turn on Content & Privacy Restrictions, then tap App Store, Media, Web, & Games and choose Web Content. Select Limit Adult Websites. Then set a Screen Time passcode, ideally chosen by someone you trust, so the setting can’t be switched back in a weak moment.

How do I block adult websites on iPhone permanently?

No setting is truly permanent, because anyone with the Screen Time passcode can change it. The closest you can get is to turn on Limit Adult Websites, let someone else hold the passcode, skip passcode recovery on your own Apple Account, and block app installs so no new browser can slip past the filter.

Does Limit Adult Websites work in Chrome and other browsers?

It works in Safari and in browsers that respect Apple’s filter, but you shouldn’t assume every browser does. Open a blocked site in each browser on your phone to test it, and delete any browser that lets it through. Then block new app installs so another one can’t be added.

What if I forget my Screen Time passcode?

If you set up Screen Time Passcode Recovery, you can reset the code with the same Apple Account used when the passcode was created. If you didn’t, contact Apple Support. That’s also why, if you’re blocking porn for yourself, recovery shouldn’t point to an account you control.

How do I block porn on an iPad?

The steps are the same, because iPad uses the same Screen Time settings: turn on Content & Privacy Restrictions, set Web Content to Limit Adult Websites, and lock it with a passcode someone else holds. Repeat the setup on every device you use, since each one needs its own limits.

Can I block porn on iPhone without Screen Time?

Yes, with a filtering DNS or VPN app, an accountability app, or a filter on your home Wi-Fi router. But Screen Time is free, built in, and harder to remove once someone else holds the passcode, so it’s the best place to start. Third-party tools work best as an extra layer on top of it.

Sources

1. Apple. Block apps, app downloads, websites, and purchases on iPhone. iPhone User Guide, iOS 26. ↩ ↩²

2. Apple. Set up parental controls to manage your child’s iPhone or iPad. Apple Support, September 2026. ↩ ↩²

3. Tech Lockdown. Best ways to block porn on iPhone. Updated July 2026. ↩

4. Apple. Create, manage, and keep track of a Screen Time passcode on iPhone. iPhone User Guide, iOS 26. ↩ ↩²

5. Apple. Change your Screen Time passcode on an iPhone or iPad. Apple Support, September 2026. ↩

6. Apple. Receive warnings about sensitive content on iPhone. iPhone User Guide, iOS 26. ↩

7. Gollwitzer, P. M., & Sheeran, P. (2006). Implementation intentions and goal achievement: a meta-analysis of effects and processes. Advances in Experimental Social Psychology, 38, 69–119. ↩