Can't install apps from App Store on iPhone with iOS 7 I upgraded my iPhone 4 to iOS 7 last night but now I can't download apps using the App Store on my iPhone. It's still possible to get the apps using iTunes on my computer and syncing my phone, but this is cumbersome.

I get errors as shown below:


  Unable to Purchase
  [app name] could not be purchased at this time. Please try again later.






Is this a known issue, and how can I rectify it?
I would suggest trying the following options:


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