How to Fix Apps Not Working on iPhone After iOS 18 Update Issue

Learn how to fix the problem if your iPhone apps are not working, crashing, not opening, or responding after the recent iOS 18 update.
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by Dave Johnson

Several users have complained that some of their apps are not working after iOS 18 update. Some of the problems users are experiencing include:

  • Apps are crashing.
  • Apps won’t respond, load or open.

Are you experiencing these problems as well? There could be a few different reasons why your apps are not working, crashing, not opening, or responding after iOS 18 update. This article explains how to fix these issues.

iPhone displaying apps in iOS 18

Apps not working after iOS 18 update fixes:

Follow the troubleshooting steps below until your problem is resolved.

1. Restart the app that’s not working

Simply quit the app that’s not working and then reopen it. Here is how:

  1. Launch the app switcher on your iPhone. Here is how to do it:
    • If your iPhone has Face ID: Swipe up your finger from the bottom of your screen and pause in the middle of the screen.
    • If your iPhone has a Home button: Double press the Home button.
  2. Find the app’s preview icon, you can swipe left or right.
  3. Swipe up on the app icon to close it.
  4. Then open the app again to see if it is working as expected.

2. Restart your iPhone

The simplest fix for many problems is a basic restart. Simply restart your iPhone to fix app problems. Here is how:

  • iPhone with Face ID: Press and hold the volume up (or down) and the Side button until the on-screen power off slider appears. Drag the slider from left to right. Wait about 30 seconds. Press and hold the power button until the Apple logo appears.
  • iPhone with a Home button: Press and hold the power button until the power off slider appears. Drag the slider from left to right. Wait about 30 seconds. Then press and hold the power button until the Apple logo appears.

3. Update your apps.

It is possible that your apps are not working after iOS 18 update because they require an update. To fix, ensure that you are using the latest version of the app. Here’s how you can check this:

  1. Open the App Store.
  2. Tap your profile icon near the top-right of your screen.
  3. Scroll down to see your Available Updates.
  4. Tap Update All.

4. Update your iPhone

If you are not currently running the latest version of iOS 18 on your phone, you should update your iPhone. Updates often include bug fixes. Here’s how you can check for updates and update your iPhone:

  1. Go to Settings.
  2. Tap General.
  3. Choose Software Update.
  4. If an update is available, top Update Now.

5. Check your internet connection

Some apps requires an Internet connection to function properly. Here’s what to do:

  • Make sure your iPhone has a working Wi-Fi connection or a cellular-data connection. On your iPhone, launch Safari and visit a website like igeekcentral.com. Does our website load? If it doesn’t, that may mean that you are having connection issues. Here’s what you can do:
    • Enable Airplane Mode on your iPhone and then disable it (Settings > Airplane Mode).
    • Restart your router/modem. Unplug it from the power outlet, wait about 30 seconds, and then replug it.
    • Make sure that you are not too far from your router or modem.
    • If you are using a VPN, turn it off and try again (Settings > VPN).
    • Reset your network settings (Settings > General > Transfer or Reset iPhone > Reset > Reset Network Settings.
  • If you are trying to use the app in question over cellular data on your iPhone, please ensure that Use Cellular Data is on for the app. On your iPhone, go to Settings > Cellular, Cellular Data, or tap Mobile Data > then find the app that’s not working and ensure that it is enabled.

6. Delete and reinstall

If you are still having issues, you may want to delete the app that’s not working, restart your iPhone and then install again. Here is how

  • Tap and hold the app that’s not working.
  • Tap on Remove App.
  • Tap on Delete App.
  • Tap on Delete.
  • Now restart your iPhone.
  • Then go to the App Store and search for the app you just deleted and redownload it.

Hopefully, one of the steps above has fixed the problem you have been experiencing with your apps after iOS 18 update. If you’re still having problems, you may need to contact the Developer for the app that’s giving you problems.

Avatar for Dave Johnson

Author: Dave Johnson

Dave Johnson is a tech writer at iGeekCentral covering news, how-tos, and user guides. Dave grew up in New Jersey before entering the Air Force to operate satellites, teach space operations, and do space launch planning. He then spent eight years as a content lead on the Windows team at Microsoft. As a photographer, Dave has photographed wolves in their natural environment; he's also a scuba instructor and co-host of several podcasts. Dave is a long time Mac user and has contributed to many sites and publications including CNET, Forbes, PC World, How To Geek, and Insider.

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