title: When IOS 7 is launch will all application that is build for ios 6 look well?
body: <p>Currently I have an app at appstore in IOS 6. If my friend with ios 7 downloaded it, it still look well.</p>
  
  <p>However, if I try to build on that iPhone 7, it looks messy.</p>
  
  <p>I noticed that I now used Xcode 5 and I used IOS 7 SDK. I can't go back to previous SDK.</p>
  
  <p>If I updated my app now, will it look messy when iPhone 7 shows up?</p>