Why the first step is easy and the second one is not
Turning on a filter takes a minute. Keeping it on is the hard part. Most people who search for this have already blocked adult sites once, then switched the block off late at night and told themselves it was only this one time. A good setup plans for that moment, not for the calm moment when you are reading this guide.
So this guide has two parts. First, the free Apple method, step by step. Second, the gaps in that method and how to close them, whether you use Apple's tools alone or add a dedicated blocker such as BlockMind.
Block adult websites with Apple Screen Time
Apple's built-in filter is free and already on your phone. The menu names below match recent iOS versions. On some versions the content section is called App Store, Media, Web & Games instead of Content Restrictions, but the options inside are the same.
Open Screen Time
Go to Settings > Screen Time. If you have never used it, tap App & Website Activity and turn it on, then choose that this is your iPhone.
Turn on Content & Privacy Restrictions
Tap Content & Privacy Restrictions and switch the toggle at the top on.
Limit adult websites
Open Content Restrictions (or App Store, Media, Web & Games), tap Web Content, and choose Limit Adult Websites. You can also add specific sites under Never Allow.
Lock the settings
Go back to Screen Time and tap Lock Screen Time Settings (Use Screen Time Passcode on older versions). Set a passcode.
Make the passcode hard to get back
Ask someone you trust to type a code you do not see, or pick a random code, write it down, and store it somewhere inconvenient. A code you know by heart is easy to undo at 1 a.m.
A filter you can switch off in ten seconds is a suggestion. The passcode is what makes it a rule.
Where Apple's filter falls short
Limit Adult Websites is a solid starting point, but it has real gaps that are worth knowing before you rely on it:
- It is a filter, not a guarantee. Apple decides which sites count as adult. New or less known sites can slip through, so you may end up adding sites to Never Allow by hand.
- Apps are a separate door. Social apps, Reddit-style communities, and some browsers inside other apps can show explicit images. The web filter does not block an app itself.
- You can turn it off if you know the passcode. If the code is yours, the block is only as strong as your mood at that moment.
- Nothing slows you down. Once the passcode is entered, the change is instant. There is no wait that gives the urge time to pass.
Close the common loopholes
A few extra settings make the Apple method noticeably stronger:
- Stop app deletion. In Settings > Screen Time > Content & Privacy Restrictions > iTunes & App Store Purchases, set Deleting Apps to Don't Allow. This stops you from deleting a blocker app on impulse.
- Block app installs. In the same menu you can set Installing Apps to Don't Allow while you settle in, so you cannot download a new browser to get around the filter.
- Restrict explicit media. In Content Restrictions you can limit explicit music, podcasts, books, and set age ratings for movies, TV, and apps.
- Block trigger apps. If certain apps reliably lead you to adult content, block them on a schedule or entirely. Our guide on blocking apps on iPhone walks through it.
How BlockMind makes the block harder to undo
BlockMind is an iPhone app built for the part Apple leaves open: the moment you want the block gone. It uses Apple's Screen Time and Family Controls frameworks, and adds friction on top.
- Adult site blocking on every browser. Turn on adult site protection once and it applies across browsers on the phone, not only Safari.
- A turn-off wait. Switching protection off starts a cooldown you choose, from 15 minutes up to 24 hours. The block stays on until the wait ends, which is usually long enough for the urge to fade.
- Strict Mode. Lock your protection for a period you pick. Until it ends, you cannot weaken your settings.
- Deletion protection. Stop yourself from deleting BlockMind in a weak moment. Turning this off has its own cooldown.
- A block screen that talks back. When something is blocked you see a short message from your past self, such as "You told me to stop you here. Not today."
- An emergency pass. If you truly need to get through, there is a limited emergency pass, so you are never fully stuck.
- Progress you can see. Your streak grows day by day, and a house grows with it: a new house at the start, at 7 days, at 30 days, and your final house at 60 days.
BlockMind requires a subscription. Apple's free filter is still worth turning on as well; the two work together.
What to do today
- Turn on Limit Adult Websites in Screen Time.
- Lock Screen Time with a passcode you do not know.
- Set Deleting Apps to Don't Allow.
- Block the one or two apps that most often lead you to adult content.
- If you have turned the filter off before, add a blocker with a turn-off wait and Strict Mode.
Quick answers
Can BlockMind block adult websites on iPhone?
Yes. Turn on adult site protection in BlockMind and adult sites are blocked across browsers on your iPhone.
Can I still turn protection off?
Yes, but not instantly. Turning protection off starts a cooldown you set, from 15 minutes to 24 hours, and Strict Mode can lock settings completely for a period you choose.
Does BlockMind also block apps?
Yes. You can pick any apps to block, block them on a schedule, block them now, or block them after a daily usage limit.
Is Apple's Limit Adult Websites setting free?
Yes. It is part of Screen Time in Settings and costs nothing. It works best when Screen Time is locked with a passcode you do not know.
Why do some adult sites still open with Screen Time on?
Apple's filter relies on its own list of adult sites, so some sites are missed. Add them under Never Allow, or use a dedicated blocker as an extra layer.
Can I stop myself from deleting the blocker app?
Yes. Set Deleting Apps to Don't Allow in Screen Time, or turn on BlockMind's deletion protection, which waits out a cooldown before it can be turned off.