You know, this sounds like something Apple would pull, even if it was at the expense of its own customers. The sad thing is, if you want to have access to Apple's App store, you have to play by their rules.
Spotify says Apple is making it harder for the streaming music company to compete by blocking a new version of its iPhone app. In a letter sent this week to Apple’s top lawyer, Spotify says Apple is "causing grave harm to Spotify and its customers" by rejecting an update to Spotify’s iOS app. The letter says Apple turned down a new version of the app while citing "business model rules" and demanded that Spotify use Apple’s billing system if "Spotify wants to use the app to acquire new customers and sell subscriptions."