title: Where are In-App Purchase downloads hosted?
body: <p>Using a comic app (like the Marvel app) as an example, where is a comic book purchased via an In-App Purchase actually hosted (as in where does it download from)? Is it on Apple servers (like the app itself is) or on the app developers servers?</p>
  
  <p>I ask because Apple charges 30% for an In-App Purchase...the same as they do for a regular app purchase. This is supposed to be in exchange for things like not paying credit card processing fees and not having to host the app ourselves. But in the case of an In-App Purchase that requires a download (and not simply unlocking a feature already contained within the app), I assume the download has to come from the app developers own servers...which means the app developer is paying for the data transfer on top of the 30% to Apple. Is this correct?</p>
  
  <p>Thanks.</p>
  
  <p>Eddie</p>