You already know which app it is. It is the one you open in the elevator, in the queue, in the four seconds between finishing a sentence and starting the next one. You do not want it gone forever. You just want it to be unavailable at the moments when it costs you the most.

Quick answer

To block an app on iPhone, open Settings, tap Screen Time, then App Limits, add a limit for the app or its category, and turn on Block at End of Limit so the limit cannot be dismissed with one tap. For whole windows of the day, use Downtime instead. To remove an app completely, use Content & Privacy Restrictions. For repeatable focus sessions, a dedicated blocker app built on Apple's Screen Time framework adds a boundary you set in advance.

The tools have been on your phone the whole time. Most people who say blocking "does not work" are using a setting that was designed to be dismissed, without ever turning on the toggle that makes it hold. This guide covers five methods, what each one actually stops, and how easy each one is to undo at 11pm.

Menu names shift slightly between iOS versions, so if a path below does not match your phone exactly, search the Settings app for the feature name.

First: set a Screen Time passcode you do not know

This is the step almost everyone skips, and it is the one that decides whether any of the rest works.

Open Settings, tap Screen Time, then Screen Time Passcode, and set a four-digit code that is not your device passcode. If the code is easy for you to recall, you will enter it without thinking the moment you meet a block. That is not a character flaw. It is what a well-practiced habit does when it meets a two-second obstacle, which is exactly why willpower alone rarely holds against an automatic phone habit.

Two options that work better than a memorable code:

  • Ask someone else to set it. A partner, a friend, or a housemate types a code you never see. You can still ask for it, but now that request is a conversation instead of a reflex.
  • Generate a random code and store it somewhere hard to reach. Write it on paper and put it in a drawer in another room, or seal it in an envelope. You keep full control, but retrieving it takes minutes rather than milliseconds.

Key insight

A block does not need to be impossible to be effective. It needs to be slower than the urge. Most impulse app opens last a few seconds, so any barrier that costs a minute of deliberate effort is usually enough to break the loop.

Five ways to block apps on iPhone

Each method below solves a different problem. Read the comparison table further down if you are not sure which one fits your situation, then set up one method today rather than all five at once.

01

App Limits: cap a single app by the day

Go to Settings, Screen Time, App Limits, then Add Limit. Pick a whole category such as Social or Entertainment, or tap the category name to expand it and select individual apps. Set the daily allowance, choose Customize Days if weekends should differ, then tap Add.

Now do the part that matters: open the limit again and turn on Block at End of Limit. Without it, the screen that appears at the limit offers a one-tap escape and the limit becomes a suggestion. With it on, getting past the block requires the Screen Time passcode.

02

Downtime: block by time of day, not by minutes used

Go to Settings, Screen Time, Downtime, and schedule the hours you want protected. During Downtime, only apps on your Always Allowed list and phone calls remain available. Turn on Block During Downtime so the schedule cannot be waved away.

This is the better choice for evenings, mornings, and working hours, because it protects a window rather than a quota. If your problem is the hour before sleep, pair it with a wind-down routine that does not depend on willpower at midnight.

03

Content & Privacy Restrictions: remove an app entirely

In Settings, Screen Time, tap Content & Privacy Restrictions and turn it on. Under Allowed Apps you can switch off built-in apps such as Safari, Mail, or FaceTime, which removes them from the Home Screen until you switch them back on.

In the same section, App Store purchase settings let you set Installing Apps to Don't Allow. That closes the delete-and-reinstall loop, which is the single most common reason a deleted app is reinstalled within a few days.

04

Hide, lock, and de-index the app icon

On recent iOS versions you can touch and hold an app icon and choose Require Face ID to lock it, or hide it so it only appears in a locked folder in the App Library. Touch and hold, then Remove App, then Remove from Home Screen also keeps the app installed while taking it off the page your thumb opens automatically.

Finish the setup in the app's own settings page under Siri & Search by turning off the option to show the app in search. Otherwise a pull-down search and three letters relaunches the exact habit you just hid.

05

A blocker app for repeatable focus sessions

Third-party blockers build on Apple's Screen Time framework, so they can block the same apps the system can, with an interface designed for daily use rather than parental setup. The practical difference is speed: starting a 50-minute session or a recurring weekday routine takes one tap instead of a trip through five Settings screens.

This is the method to choose when your blocks need to change shape often, or when you want something at the moment of the reach rather than a silent refusal. For the design principles that separate blockers that hold from blockers that get uninstalled, see why most app blockers fail.

Which method should you use?

Match the method to the pattern you are trying to interrupt:

Method What it stops Bypass difficulty Best for
App Limits An app after a daily time budget Low without Block at End of Limit, medium with it Apps you genuinely want, in smaller doses
Downtime Everything except your allowed list, during set hours Medium with a passcode you do not know Evenings, mornings, and working hours
Content & Privacy Restrictions Built-in apps, installs, and reinstalls High, since undoing it is several deliberate steps Delete-and-reinstall cycles and browser workarounds
Hiding and locking icons The automatic reach, not the app itself Low, but it removes the thoughtless open Autopilot pickups with no clear trigger
A blocker app Chosen apps during sessions and routines Depends on how the app is configured Focus sessions and recurring weekly patterns

Does Focus mode block apps?

Not by itself, and this trips up a lot of people. A Focus silences notifications from apps and people you have not allowed, and it can switch to a custom Home Screen page, but nothing prevents you from opening a hidden app manually.

Focus is still worth setting up alongside a real block, because it removes the badges and banners that pull you toward the app in the first place. Think of it as turning off the invitations while Screen Time locks the door. If the pull comes from notifications more than from boredom, start there and read our guide on why you keep opening your phone without deciding to.

Three mistakes that make app blocking fail

1. Leaving the one-tap bypass switched on. A limit without Block at End of Limit can be dismissed in a single tap, and that tap becomes automatic within about a week. If you have ever concluded that Screen Time does not work on you, check this toggle before you conclude anything else.

2. Blocking the app but not the website. Blocking Instagram or X while Safari sits one swipe away just reroutes the habit. Under Content & Privacy Restrictions, Content Restrictions, Web Content, choose the limited option and add the specific sites to the Never Allow list.

3. Blocking everything on day one. If your phone fights you all day, you will remove the restrictions yourself, usually on the first stressful evening. Start with the one app and the one time window that account for most of your unplanned use, prove to yourself that it holds for a week, and only then expand. The same logic applies when you want to reduce screen time without deleting social media altogether.

Where Simba fits

Simba is built for the fifth method, on the days when the first four feel like too much admin.

You choose the apps to block, then start a focus session or set a Focus Routine for the hours you want protected. Simba uses Apple's native Screen Time integration, so the block applies at the system level rather than as a reminder you can scroll past.

The difference is what happens at the moment of the reach. Instead of a blank refusal, your thumb meets the Simba mascot and the reason you wrote down for yourself earlier, when you were calm and not mid-urge. Sessions, streaks, and insights then show you which hours are actually costing you, so the next boundary you set is based on your pattern rather than a guess.

FAQ

How do I block an app on my iPhone completely?

Open Settings, tap Screen Time, then App Limits, add a limit for the app, set it to one minute, and turn on Block at End of Limit. The app then stays blocked for the rest of each day after the first minute, and getting past it requires the Screen Time passcode. To remove a built-in app such as Safari entirely, use Content and Privacy Restrictions, then Allowed Apps.

Why can I still open an app after its Screen Time limit?

Because Block at End of Limit is switched off. In that state, the time-up screen offers to ignore the limit and the app opens immediately. Open Settings, Screen Time, App Limits, tap the limit, and turn Block at End of Limit on so the block requires the Screen Time passcode instead.

Can I block apps on iPhone without using Screen Time?

Partly. You can delete an app, remove it from the Home Screen, lock it behind Face ID, hide it in the App Library, or turn off its notifications, and all of those reduce automatic opens. None of them prevent a deliberate open, so a system-level block through Screen Time or a blocker app built on it is the only way to make an app genuinely unavailable.

Does blocking an app delete my account or my data?

No. Blocking through Screen Time, Downtime, or a blocker app only prevents the app from opening on that iPhone. Your account, messages, posts, and saved content remain untouched, and everything is exactly as you left it when the block ends.

Can I block apps only during work hours?

Yes. Downtime accepts a daily schedule and can be customized per day, so you can protect working hours on weekdays and leave weekends open. Blocker apps typically offer the same thing as a recurring routine that starts and ends without you having to remember it.

Is a third-party app blocker better than built-in Screen Time?

It depends on how often your blocks need to change. Screen Time is free and sufficient for a fixed daily schedule you set once. A blocker app is more useful when you start focus sessions on demand, want blocks that vary by day, or want a prompt at the moment of the reach rather than a silent refusal.

Do app blocks work if someone knows the Screen Time passcode?

Only as much as you want them to. Any block can be undone by whoever holds the passcode, so if that is you and the code is memorable, the block acts as a speed bump rather than a wall. Having someone else set the code, or storing a random code somewhere that takes minutes to reach, is what turns a speed bump into a real boundary.

Sources and editorial scope

These guides combine practical product experience with the research below. The named frameworks are Simba’s editorial models, not clinical protocols or medical advice.

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Block the app before you open it without thinking.

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