title: Do universal apps mean that the download size is larger than needed for iPhone and iPod devices?
body: <p>Including @2X and ~ipad graphics in an app I am working on increases the app size by eight megabytes.  This, along with other graphics that have to be done in triplicate makes apps in general grow very quickly.</p>
  
  <p>I am wondering what happens when someone downloads a universal app onto, say, an iPod touch.  Do they get the entire package, including @2X and ~ipad images that they, effectively, won't use or does Apple repackage the application to only send relevant graphics?</p>
  
  <p>If it's option #2, are there any dangers in trying to save some space by using code to apply @2X images to the iPad version of an app.  After all, in most cases @2X and ~ipad assets are so close in size that it makes little sense to duplicate files.</p>