For instance, if you buy movies tickets through an app, Apple does not get a cut. If you buy a computer through Newegg's app, Apple does not get a cut. If you buy a lawn mower through Walmart's app, Apple does not get a cut. If you pay your electric bill through your bank's app, Apple does not get a cut.
However, there are notable major categories of apps that handle payments but do not incur the payment-cut issue. As others have noted, banking applications, which often include payment and money transfer functions, are ubiquitous. Payment facilitators are no strangers to the app store: PayPal[1], Square's line including Register[2], Cash[3] and Wallet[4]. Retail store apps also don't appear to be affected by the 30% cut: Amazon, B&H Photo, McMaster-Carr, etc. all have store apps.
Also, it seems that Apple has been forthcoming regarding reasoning in the past over disputes regarding in-app purchases, e.g. with Amazon over the Kindle app presenting the Kindle Store. In the BtC app cases, it's the stonewall "game over" response, with no ongoing communication as to how the app might regain compliance.
That suggests, in contrast to other cases, that Apple's current position is that these apps cannot become compliant. Even though the BtC-related apps otherwise resemble established payment-related products. That's an interesting distinction and points to either undisclosed legal concerns or otherwise different business concerns than were raised in earlier cases.
[1] https://itunes.apple.com/us/app/paypal/id283646709?mt=8
[2] https://itunes.apple.com/us/app/square-register/id335393788?...
[3] https://itunes.apple.com/us/app/square-cash/id711923939?mt=8
[4] https://itunes.apple.com/us/app/square-wallet/id455018546?mt...
With PayPal you can pay for goods, receive payments for goods, transfer to an individual, receive payments from an individual, do it all in different currencies and transfer in and out of bank accounts etc.
Aside from the fact that the model itself is rather different, I can't think of any practical uses that can be done with one but not the other?
Edit: for clarification, I mean in the context of the parent's scenario of Apple taking their 30% cut of a transaction. Obviously there are plenty of reasons to use BTC over other payment methods.
I agree that there are advantages to Bitcoin over other payment methods. No dispute there.
But your original contention was that Apple want to be able to take a 30% slice of transactions, and they can't do that with Bitcoin so they're banning wallet apps. My gut instinct says that's not the reason but I'm trying to find out more info before deciding.
Apple don't take a cut of any of the transactions done through the PayPal app etc. so I think it's safe to assume that they wouldn't want a cut of similar transactions done over Bitcoin.
So again, I'm probably missing something obvious, but I can't think of any: what are some examples of transactions that are only possible with Bitcoin where Apple would want to take a cut.
There are also a number of simple payment apps backed by banks for doing low value transfers (under 1500 GBP) like Barclays Pingit and so on.
/shocked