iPhone Screen Time App Limits Not Working? 9 Fixes to Try

1. Make sure App & Website Activity is enabled

App Limits cannot work if the system that powers them is turned off.

Go to: Settings → Screen Time → App & Website Activity

If it is disabled, turn it on. Apple explains that turning off App & Website Activity also turns off Screen Time reporting, Downtime, App Limits, and Always Allowed.²

After enabling it, create a one-minute test limit:

1. Open Settings.
2. Tap Screen Time.
3. Tap App Limits.
4. Tap Add Limit.
5. Select one app.
6. Set the limit to one minute.
7. Use the app and confirm that the warning appears.

If it does, Screen Time is running. You can now determine whether the problem is the selected apps, the blocking configuration, or the ease of overriding the warning.

2. Check that you selected the correct app or category

An App Limit only applies to what you selected.

This sounds obvious until one app appears under an unexpected category, you replace an app with a newer version, or you limit “Social” while the service you use is classified somewhere else.

Open: Settings → Screen Time → App Limits

Tap the affected limit and check the apps included. If you want to restrict one particular app, select it individually instead of relying on a broad category.

Be especially careful when several apps share one limit. A 30-minute limit for a group is normally shared across the selected apps; it is not necessarily 30 minutes for every app in that group.

Also check the schedule for each day. If you customized Monday through Friday but left the weekend unchanged, the difference may look like a broken limit when it is actually following the schedule you created.

3. Lock Screen Time settings with a separate passcode

A limit is not much of a limit if changing it requires the same code you already enter all day.

Settings → Screen Time → Lock Screen Time Settings

To create a Screen Time passcode for yourself:

1. Open Settings.
2. Tap Screen Time.
3. Scroll down and tap Lock Screen Time Settings.
4. Enter a four-digit passcode.
5. Enter it again to confirm.³

The Screen Time passcode protects the settings and controls requests for additional time. It is separate from the passcode used to unlock your iPhone.

If you are setting the limit for yourself, there is still an obvious weakness: you know the code.

If a parent manages the settings through Family Sharing, they should use a passcode the student does not already know. Apple also provides a recovery process if the Screen Time passcode is forgotten.⁴

4. Turn on the available blocking options

Screen Time can either remind you that a boundary has arrived or enforce that boundary more strictly.

For App Limits: Settings → Screen Time → App Limits → Affected limit

For App Limits, open the affected limit and look for a setting such as Block at End of Limit. If it appears on your current version of iOS, turn it on. Apple occasionally changes the exact labels and placement of Screen Time controls, so confirm the wording on your device.

For a scheduled study period, Downtime provides a clearer route:

1. Open Settings.
2. Tap Screen Time.
3. Tap Downtime.
4. Create the schedule you want.
5. Turn on Block at Downtime.

Apple explains that when Block at Downtime is on, restricted apps appear dimmed with an hourglass and cannot be opened normally. When it is off, Downtime presents a reminder that can be ignored.¹

Blocking off

Blocking on

This makes App Limits and Downtime useful for different jobs:

5. Review the Always Allowed list

Always Allowed does what its name suggests.

An app on this list can remain available during Downtime. That is useful for Phone, Messages, Maps, medication reminders, accessibility tools, and other essentials. It is less useful when TikTok was added during a temporary exception and never removed.

Go to: Settings → Screen Time → Always Allowed

Review each app. Keep what you genuinely need and remove what is defeating the point of the schedule.

6. Block the website version as well as the app

Blocking the Instagram app does not help if you open Instagram in Safari 20 seconds later.

App Limits and website restrictions solve different parts of the problem. If a distracting service remains accessible through a browser, add its website to your restrictions.

Settings → Screen Time → Content & Privacy Restrictions → App Store, Media, Web, & Games → Web Content

Apple’s current route for restricting a specific website is:

1. Open Settings.
2. Tap Screen Time.
3. Tap Content & Privacy Restrictions and turn it on.
4. Tap App Store, Media, Web, & Games.
5. Tap Web Content.
6. Select Limit Adult Websites.
7. Under Never Allow, add the specific website URL.⁵

The name “Limit Adult Websites” makes this setting sound unrelated, but the same menu allows specific URLs to be added to Never Allow.

Add the main domain and test it in every browser you use. If the service uses several domains, mobile sites, or embedded pages, one URL may not cover every route.

7. Check Share Across Devices

Your iPhone may not be the only device contributing to Screen Time.

When Share Across Devices is enabled, Apple can sync Screen Time schedules, limits, and usage information across an iPhone, iPad, and Mac signed in to the same Apple Account.²

This can create two kinds of confusion:

• Your reported usage appears much higher because time from several devices is combined.
• A limit seems to activate earlier than expected because the available time is being used elsewhere.

Open: Settings → Screen Time → Share Across Devices

Turn it on if you want one limit to follow you across your Apple devices. Turn it off if you deliberately want separate tracking and rules on each device.

Neither choice is universally correct. The important thing is knowing which one you selected.

If YouTube is blocked on your phone but remains open on your school laptop, an iPhone-only limit may never solve the complete distraction problem. In that case, a cross-device blocker may be more appropriate.

8. Set the date and time automatically

Downtime depends on your phone knowing when the scheduled period begins.

Go to: Settings → General → Date & Time

Turn on Set Automatically. Apple recommends this setting so the device can use the correct date, time, and time zone.⁶

Check this after traveling, changing time zones, restoring a device, or noticing that Downtime begins at the wrong hour.

If Set Automatically is unavailable, Apple recommends checking your internet connection, software version, and settings that may prevent the time zone from being changed.⁶

9. Restart, update, and recreate the limit

If the setup is correct but the limit still does not apply, treat it as a software problem.

Try these steps in order:

1. Turn the affected App Limit off and back on.
2. Restart the iPhone.
3. Open Settings → General → Software Update and install an available iOS update.⁷
4. Delete the affected limit and recreate it for one app.
5. Test the new limit for one minute.
6. If necessary, document your existing setup and then turn App & Website Activity off and back on.

If settings repeatedly disappear, fail to sync, or behave differently across family devices, contact Apple Support. A third-party blocker can give you a different system, but it cannot repair a fault inside your Apple Account or Family Sharing configuration.