You don’t even realize that, but there are so many apps on your iPhone which you don’t use at all. Step 2: Select the application which is using the extra memory and delete it from the device. There you will see the Used and Available space along with the list of apps installed on your device. Step 1: Open General settings and select the Manage Storage option.
When the memory is running out, the apps automatically crashes, and it can only be fixed by emptying up the memory. Apps require some space to create cache and temp. Most of the time, when iOS 15 apps quite unexpectedly, it is because the memory space is running out on your device. You can also switch the Airplane mode on from the settings. Tap on it to switch it on, wait for a little while, and then tap on the icon again to switch the mode off.
Swipe up from the home screen, and you will see the Airplane Mode icon. It doesn’t have a direct link with fixing the iPhone apps not working on iOS 15 issues. Other than the simple restart, you can also consider turning the Airplane mode on or off. Drag the slider to switch off your device and turn it back on by pressing and holding the Top/Side button.
There you will find the Reset option at the bottom of the list. Step 1: Launch the Settings app and open General settings. So, the easiest thing you should try is restoring the device settings. Usually, it is the settings or compatibility issues of the app that interrupts the working. The first idea that comes to mind when the iPhone apps won’t open on iOS 15 is the device reset. We hope that at least one of them will resolve the ongoing issue, and you will have a properly working device. The common tweaks you should try to fix the problems you’ve been experiencing are listed below. Tweak iPhone settings to fix iOS 15 app problems