title: Same Bundle ID suffix on iPad and iPhone versions of App
body: <p>This is a subtle question. I am planning to release an iOS app with two versions - one for iPhone and iPod Touch, and the other for iPad. The apps will be named, say, <code>MyApp</code> and <code>MyApp HD</code>. The app allows you to save files, and also to communicate with other users of the app via GameCenter. </p>
  
  <p>I would like the iPad and iPhone versions to be able to interchange files, and also to communicate with each other via GameCenter. So, my question is, in iTunesConnect, should (and can I) assign both apps the same bundle ID (e.g. <code>com.mycompany.myapp</code>) or do I have to give them different bundle IDs (e.g. <code>com.mycompany.myapp</code> and <code>com.mycompany.myapphd</code>).</p>
  
  <p>iOS and GameCenter experts, please advise!</p>