At first glance, the mockups Spotify has created of its dream app don’t look like much of anything: a card that says how much a subscription costs, the list price of an audiobook, and a button that lets you enter your payment information. Isn’t that how the app already works?
Much to Spotify’s consternation, none of that is there today. Because Apple takes a 30 percent fee on in-app purchases for digital goods and services, companies like Spotify have decided it is simply not worth it…