Two different concepts
In my previous article on the subject I explained how to create an app that supports the Newsstand feature introduced by Apple with iOS 5. The concepts explained in that post provide the technical references needed to build an app that is able to retrieve and download any new content, even in the background, and update the cover-like icon in the Newsstand app. Unfortunately while technically an app build in this way is completely functional, it wouldn’t be approved by Apple if sent for review. The reason for this is that Apple requires that each app compatible with Newsstand must offer its contens using an iTunes managed subscription.