>> "In the most recent version of the iOS app, they decided to disallow in-app subscriptions entirely and push all subscriptions to the web app."
We should be clear about this though as doing that is not against the rules. Take the Kindle app for example. You can buy books through the Amazon website and use them in the app. Apple doesn't get a cut. Spotify can do the same thing. The issue is that there are very specific rules around it - for example I don't believe you can include a 'sign up' button that throws the user out of the app to your payment page. It sounds like Spotify was trying to get around this by sending the user an email when they signed up through the app, and telling them to look in the email for a link to the payment page. At least this is what I've read over the last couple of days.
Thanks, this is an important point. I'm not sure exactly what Apple allows/disallows in terms of informing users about other payment options, or what Spotify is doing that would be in violation of these rules, but this is the crux of the disagreement.
My understanding is that you're allowed to sell things however you want, but inside the app you have to use Apple's purchase methods. You can't use your own, and you can't put directions in the app to go to a website or something else to purchase content. So in the app you have to do what Amazon does and never show it by button or a "how to buy" button.
And just for extra clarity, Apples policies only apply to digital goods. If you buy a real world service or physical item through an app Apple does not take a cut, but they also don't handle the payment. That's why Amazon doesn't have to pay Apple 30% when you buy a new TV from them.
We should be clear about this though as doing that is not against the rules. Take the Kindle app for example. You can buy books through the Amazon website and use them in the app. Apple doesn't get a cut. Spotify can do the same thing. The issue is that there are very specific rules around it - for example I don't believe you can include a 'sign up' button that throws the user out of the app to your payment page. It sounds like Spotify was trying to get around this by sending the user an email when they signed up through the app, and telling them to look in the email for a link to the payment page. At least this is what I've read over the last couple of days.