title: iPad app freezes but not on iPhone
body: <p>I have an app which has started freezing at random when I run it on the iPad. It does not happen on any iPhone, not yet anyway. I download a bunch of images on my app, to display on a list, and store them to the internal cache in the background. Also, the app uses modal segues. The freeze is so random I am not able to pinpoint the source of the problem.</p>
  
  <p>All this has started after the device was upgraded to iOS 7. I have also upgraded my Xcode to version 5 and am using iOS SDK 7. Everything was working fine on iOS 6.</p>
  
  <p>Has anyone been facing similar problems? </p>