Can't install apps from App Store on iPhone with iOS 7 [closed]

Solution 1:

I would suggest trying the following options:

1. Press and hold the power button and the home button until the Apple logo appears. Once it restarts, try downloading.
2. Reset your router from which you are accessing your Wi-Fi.
3. If the issue persists, trying downloading apps from a different Wi-Fi network or cellular data.
4. If these fail, Reset Network Settings (Settings > General > Reset) and do steps 2 and 3.
5. If the issue still persists, Reset All Settings (Settings > General > Reset) and try again.
6. As a last resort, take your phone to an Apple Store.

Solution 2:

Unfortunately, this is a somewhat common problem and there is no easy solution that is guaranteed to work (other than trying again later or downloading through iTunes on a computer and syncing).

One possibility is that this error indicates Apple's app store not being able to service your request. In that case, it does not have anything to do with the model of the iPhone or the version of iOS it's running (although you're seeing this after the upgrade to iOS 7, this error is seen in previous versions too).

Another possibility is that you have some pending app downloads (that you may have paused) and the App Store app's download information database is corrupted. In this case you could try deleting the (possibly corrupt) download information database on the iPhone to have the App Store app rebuild its database (to be safe, make sure you have a backup of your phone in iTunes before you attempt this).