title: iPhone app identifier?
body: <p>What is the unique identifier for an iPhone app? </p>
  
  <p>In the info.plist file, there are keys:</p>
  
  <ul>
  <li>Bundle display name </li>
  <li>Executable file</li>
  <li>Bundle identifier  </li>
  <li>Bundle name</li>
  </ul>
  
  <p>If I have already submitted an app on the AppStore before. Then I change some of the keys in the project. Which of the above can be changed freely and AppStore still considers my app is same as the existing one? Thanks!</p>