You set up a blocker when you meant it. Later, when it gets in the way, you open Settings and switch off its Screen Time access. A few taps, and the block is gone.
A locked timer or a strict mode doesn't stop that. On iPhone, what can stop it is Apple's Screen Time passcode. Here's how it works, the risk that comes with it, and two ways to set it up.
Why strict mode isn't enough
iPhone app blockers use Apple's Screen Time to block apps and websites. You give each blocker permission when you set it up, and you can take that permission away again in Screen Time settings.
Once the permission is gone, the blocker can't block anything, however strict its own settings are. So the useful question isn't how strict the blocker is. It's who can change your Screen Time settings.
What a Screen Time passcode does
A Screen Time passcode is a separate four-digit code that guards your Screen Time settings. It isn't the passcode you use to unlock your phone.
In our testing on iOS 26.5.1, trying to switch off an app's Screen Time access asked for that code. It didn't offer Face ID or the phone's passcode instead.
When you set the code, Apple offers to link it to your Apple Account so you can reset it if you forget it. That's a sensible safety net, but it also means you can reset the code yourself whenever you like. With recovery skipped, the prompt in our testing had no “Forgot Passcode?” option.
So the passcode only holds you back if you don't know it and can't easily reset it.
Before you start: what if the code is lost?
If you skip Apple's recovery and nobody can give you the code, you can't change your Screen Time settings. The ways out we know of are guessing the code, which iPhone slows down after wrong attempts, or erasing the phone and setting it up again.
Take that seriously before you choose this setup:
- Only skip Apple's recovery if the code will be kept somewhere reliable, by a person or a service with a clear way to give it back.
- Think about what erasing your phone would cost you if the code were ever lost.
- Expect every Screen Time change to need the code, not only switching off your blocker.
- If erasing your phone would be a disaster for you, keep Apple's recovery. Knowing you could reset the code makes a weaker lock, but it still adds a pause.
Option 1: ask someone you trust to set it
This works with any blocker. You need someone who will keep the code private and give it back when you have a real reason.
- Set up your blocker first and give it Screen Time access.
- Open Screen Time in Settings and hand the phone over. The option to set a passcode is worded differently in different iOS versions, such as “Lock Screen Time Settings” or “Set Screen Time Passcode”.
- Look away while they type the code twice.
- When Apple asks about Apple Account recovery, decide together. If you add your Apple Account, you'll be able to reset the code yourself.
- Agree in advance when you can ask for the code back, and what they'll say if you ask at midnight.
The weak spot is the conversation
If they'll hand over the code the moment you ask, you've added a pause, not a lock. Agree on a simple rule, such as asking today and getting it tomorrow.
Option 2: let Clarity hold it with Recovery Delay
If you don't have someone to ask, Clarity's Recovery Delay does the same job with a wait built in. You'll find it in Account in the Clarity iPhone app.
Clarity creates the code and keeps the only copy, encrypted. It shows you one digit at a time while you enter it in Settings, then walks you through skipping Apple's recovery.
When you want the code back, you ask for it in Clarity. It's released after 24 hours, and you can cancel the request any time before it's shown. Clarity's server decides when the wait is over, so changing your phone's clock doesn't shorten it.
If you delete your Clarity account while it's holding the code, Clarity destroys its copy. Get the code back first.
What this does and doesn't do
The passcode guards your Screen Time settings. It doesn't block anything by itself, and it isn't what makes Clarity show Protected. You still need an active window with the apps and sites you chose.
We tested the passcode prompt on iOS 26.5.1. Apple can change these screens in any update, so Clarity tells you when your iOS version hasn't been tested yet.
Deleting the blocker app is a separate question. Check how your blocker handles it before relying on it.
None of this makes a phone impossible for its owner to unlock. It makes switching off your blocker slow and deliberate instead of a few taps you'll regret later. That's usually the part that needs to change.
