How to block apps on iPhone you can't unblock

The iPhone gives you three ways to block apps: Screen Time with a passcode, Guided Access, and Focus modes. They all work, up to a point, and they share one flaw: you set them, so you can lift them. At the moment you're weakest, you wave yourself through. If what you want is to block apps on your iPhone you can't unblock, the missing piece sits outside the phone. Here are the three methods step by step, when each one is enough, and what to do when none of them stops you.

Method 1: Screen Time with a passcode

It's the first thing almost everyone tries. You put a passcode on the apps that eat your day, and when the limit runs out, iOS asks for it before it lets you back in.

1. Open Settings and go into Screen Time.
2. Tap App Limits and add a limit to the app or the category you want (Social, for example).
3. Go back and turn on Use Screen Time Passcode — a code different from the one that unlocks your phone.
4. Under Content & Privacy Restrictions you can stop those settings being changed without the passcode.

This is enough if your problem is drifting rather than craving. If you've tried it and it quietly stopped working after a week, that's a story of its own: why Screen Time stops stopping you.

Method 2: Guided Access

This one does the opposite. It shuts the phone inside a single app — a book, a whiteboard, a call — with no way out to anything else.

1. Go to Settings > Accessibility > Guided Access and switch it on.
2. Open the app you want to stay in and triple-click the side button.
3. Set up the session and choose a passcode to end it. Until you type it, the iPhone stays where it is.

Good for short work blocks, or for handing a child the phone with one app open and nothing else within reach.

Method 3: Focus modes

Focus modes — Work, Reading, whichever one you build yourself — hide apps and mute alerts for a stretch of time or for a slot in your day.

1. Open Settings > Focus and create one.
2. Choose which apps and which people can still reach you, and which Home Screen shows up.
3. Put it on a schedule, or switch it on by hand from Control Centre.

Used properly, it takes out half the noise. But noise was never the whole problem.

The flaw all three share

All three live inside the phone, and you hold the key. You choose the passcode, so you know it. You turn the mode on, so you can turn it off. The moment an app genuinely pulls at you, you're the one deciding whether to walk through, and you do it in two taps without thinking. That isn't weak willpower. It's asking the device that catches you to police itself.

A barrier you can lift yourself in two taps isn't a barrier. It's a reminder.

What Monk is, and where it stops you

Monk isn't another app. It's a physical NFC disc — the same contactless technology your bank card uses — that you leave wherever you work or live. Three steps: pair it with the Monk app on your iPhone, choose which apps sit behind the barrier, and from then on, opening any of them means walking over and scanning the Monk. There is no soft unlock inside the app: no ignore-for-today button, no code to type, only three finite emergency unlocks. The phone stays with you, in plain sight, but reaching for an app stops being a reflex and goes back to being a decision. That gap — getting up, scanning — is the thing a passcode never gave you.

Worth saying plainly: nothing on iOS is unbreakable. What the disc buys you is the few seconds you need to catch yourself — the honest version is here, in can you get around a physical blocker.

So how do you block apps on an iPhone you can't unblock?

If you got here searching for a way to block apps so you can't just let yourself back in, you're probably in that third row. You've tried the passcode, the mode, leaving the phone in another room, and you always come back. That isn't a character flaw. The barrier was sitting inside the problem.

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