Apps not loading after iOS 27 update on iPhone 16 Pro Max

Since several unrelated apps stopped working right after the iOS 27 update, I’d start with a restart and then check Settings > General > Software Update for any newer iOS 27 update.

I’d also test one of the affected apps on both Wi-Fi and cellular. If Safari works normally on both but the apps still won’t load, that helps narrow down whether this is an app issue or a network issue.

I wouldn’t delete and reinstall the apps yet, especially Yahoo Mail, unless you’re sure any locally stored data is synced or backed up.

→ If an app on your iPhone or iPad stops responding, closes unexpectedly or won’t open – Apple Support

I’ve been through this ****, no matter what you do it won’t change …. It’s the apps that aren’t up to date/ compatible with the new Apple update. You’ll have to wait ….

I have the same issue and I am in the process of diagnosing the cause. I now know the following: When I run in Safe mode and use only Apple software plus Outlook, Word and Excel, the issue does not occur. However, the issue occurs after sharing my screen using TEAMS. I also believe it occurs when using Screen Capture from a third party software, in my case using Camtasia. In addition to not being able to launch adds, I find that certain full desktop screens will not access the top menu bar.

The immediate solution is to press F3 to open the desktops on top and then click on the current desktop giving the issue and it resolves itself. However, it will continue to re-occur until you reboot your computer. At that time, it will run fine until you use a screen-sharing or capturing third-party software.

I was told yesterday by Apple that I should contact all the third-party software companies so that they resolve their problems with iOS 27.

I have the same issue, having installed the update this morning (iOS 27.0.1 on an iPad) and several apps have stopped working, including the Apple App Store!

So how can I ensure that I have apps that work.

I also suspect the suggestion of restarting the device is non-sensical, as the device reboots after a new OS update, so why would two reboots work better than one?

Any help would be appreciated, as I am struggling without access to the apps I use every day.

My Health app has disappeared from my iPhone 13. I can search the Apple Store, find the Health app and it shows the "Open" button, but no amount of clicking on it will open the app. There is a total disconnect between what is on my phone and what the Apple store INDICATES is on my phone. The Apple Store app WILL download NEW apps that haven't appeared on my phone before this DEBACLE of an update...

Yup. How can it be that Apple TV+ isn’t compatible with an Apple IOS update?? C’mon guys!