Dropbox SDK technically violates App Store policy, causes Dropbox integrated apps to be rejected

Apple is currently rejecting apps that use the Dropbox SDK to provide integration with the popular cloud storage solution. The reason for the rejections is apparently that, under a specific but not inevitable set of circumstances, someone using an app with Dropbox integration could end up on Dropbox's web site and find a way to pay Dropbox for additional storage. That would violate Apple's prohibition against using external websites to circumvent Apple's 30% cut of subscriptions.

Source: http://feedproxy.google.com/~r/TheIphoneBlog/~3/m9lH2URjWp8/story01.htm

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