Any credits or in-game currencies purchased via IAP must be consumed within the app and may not expire, and you should make sure you have a restore mechanism for any restorable in-app purchases. Apps may not include buttons, external links, or other calls to action that direct customers to purchasing mechanisms other than IAP. Named ‘Payments,’ it details exactly how in-app purchases must work when apps are distributed via the App Store (emphasis ours): 3.1.1 In-App Purchase: If you want to unlock features or functionality within your app, (by way of example: subscriptions, in-game currencies, game levels, access to premium content, or unlocking a full version), you must use in-app purchase. The rules The axis on which the argument spins is rule 3.1 of the.
The reason Spotify doesn't have it's app in the app store is because every time there is an update, it would have to go through Apple for review and you would have to update it through the app store.
The music streaming app by Spotify, a popular Swedish music subscription service, is now available in the App Store.
