Update the Apps That Aren’t Working

If you notice that your iPhone only acts up when you’re using specific apps, then chances are those apps are the problem. Unless you want to get rid of that app, the best thing you can do is try to update it.
If the app isn’t working properly on your iPhone, chances are other users are experiencing the same issue. If the problem is big enough, the app’s developers will surely try to fix it as quickly as possible.
So, if you want to update all your apps, all you need to do is open the App Store. Next, tap your profile icon in the top right corner of your screen. Scroll down, and if an update is available, you’ll find it on the list.