Most "app blockers" on the App Store are solving a problem you don't have. Your iPhone already ships with a powerful, free, OS-level tool for blocking apps: Screen Time. It can hide apps, cut off access after a daily limit, and shut things down during set hours, all without downloading anything.
So why do people still pay monthly for a third-party blocker? Because Screen Time has one weakness, and it's not the blocking. It's that you set the passcode yourself, so the moment you want back in, you just turn it off. This guide shows you how to block apps using only what's already on your phone, and then how to close that last loophole.
Why you don't need another app blocker
Installed app blockers share the same fatal flaw: anything you can install, you can delete. When the urge hits, removing the blocker takes two taps, and you're straight back to scrolling. On top of that, many of them cost a recurring subscription for a feature your phone already has for free.
Screen Time is different in three ways:
- It's built into iOS. Nothing to download, nothing to delete, nothing to pay.
- It works at the operating-system level. It can block apps and websites more deeply than a third-party app can.
- It can be locked with a passcode. This is the part that makes it stick, if you use it right.
Step 1: Turn on Screen Time
Open Settings > Screen Time. If it isn't on yet, tap Turn On Screen Time and follow the prompts. This is the hub for every limit you're about to set.
Step 2: Block specific apps with App Limits
To cut off the apps that eat your day:
- Go to Screen Time > App Limits and tap Add Limit.
- Pick a category (like Social or Entertainment) or drill into a single app.
- Set the daily allowance. Setting it to 1 minute effectively blocks the app for the day.
When you hit the limit, the app greys out and you get a "Time Limit" screen instead of the app.
Step 3: Block apps by time of day with Downtime
If your problem is more about when than how much, use Downtime. Go to Screen Time > Downtime and schedule the hours you want apps locked away, late nights and early mornings are the usual culprits. During Downtime, only the apps you've explicitly allowed stay open.
Step 4: Block websites and adult content
Screen Time blocks more than apps. Under Content & Privacy Restrictions > Content Restrictions > Web Content, you can set Limit Adult Websites and add specific sites to Never Allow. This applies across browsers on iOS, so it catches the workaround of "just use Safari instead."
Step 5: Lock it, the step everyone skips
Here's the catch. Everything above can be undone in seconds, because you can walk into Settings and switch it off whenever you feel like it. To make the blocks real, you need to lock Screen Time behind a passcode you can't simply tap in from memory.
You can set a Screen Time passcode under Screen Time > Lock Screen Time Settings. But if you choose the code yourself, you'll remember it, and you'll use it to override your own limits the first time you're tempted. That's the loophole that sends people back to paid app blockers.
How to close the last loophole
This is exactly why we built WaitToUnlock. It's not another app blocker, it's the missing piece that makes your iPhone's built-in blocking actually hold.
WaitToUnlock generates a random Screen Time passcode and walks you through entering it on your phone using a deliberately confusing sequence, so the code gets set but you never memorise it. It then stores that passcode encrypted. When you genuinely need it back, you can request it, but you have to wait first. By the time the wait is up, the 11pm urge that made you want to disable everything has passed.
Same blocking. No subscription. No app to delete. Just your own phone, set up so your calmer self stays in charge.
The short version
You already own the best app blocker on your iPhone. Use App Limits and Downtime to block the apps, use Content Restrictions for websites, and then lock the whole thing with a passcode you can't bypass on impulse. That last step is the one that turns a suggestion into a real boundary.