Nobody purchased those services via IAP because those companies CAN'T provide it at the 30% profit loss. Don't you think companies would rather offer their customers the ability to sign up for their services straight from the app with a few simple clicks without having to so via more complicated external means? How many customers have been put off from signing up to various services because it wasn't that easy to do? Whereas with Apple's competing services they can just click a button to subscribe. Obviously customers and other companies are inconvenienced.
To answer that rhetorical question: Technically, It doesn't matter how many it in numbers, since even if it's a small number of users, it will fall under anti-trust. I don't have numbers, but I would suspects many users would rather want to subscribe to services and make purchases for content (that is not provided or owned by Apple) directly from many apps. i.e. I've been inconvenienced by the fact that I wasn't able to buy comic books on my iPad using the Comixology app because of the 30% fee Apple would take, and I've skipped over many potential spur-of-the-moment purchases because of the hassle associated with the process, so the Comixology app suffers, the comic book creators suffer, and I suffer (although my bank account sighs a relief.)
Like I posted in my original message, the US Government and the EU Commission both disagree with you:
United States v. Microsoft (
https://en.wikipedia.org/wiki/United_States_v._Microsoft_Corp.)?
EU v. Microsoft (
https://en.wikipedia.org/wiki/Microsoft_Corp._v._Commission)?
and also, more recently the Apple batterygate scandal:
https://www.theverge.com/2020/7/13/...erygate-throttling-slowdown-settlement-claims
Anti-trust laws are well explained in
https://www.investopedia.com/ask/answers/09/antitrust-law.asp
"The goal of these laws is to provide an equal playing field for similar businesses that operate in a specific industry while preventing them from gaining too much power over their competition. Simply put, they stop businesses from playing dirty in order to make a profit."
(btw: You don't need to be a monopoly to break anti-trust laws. Many people just associate them with monopolies.)
In order for other companies to offer consumers an equal experience, they need to pay Apple 30% of their profits. So, obviously they can't do that, and consumers lose alternative options. That is definitely NOT
pro-competition.
You can claim anti-trust whenever another company uses its monopolistic position to unfairly disadvantage others. Apple is stifling competition by price-cutting services without the possibility for anyone else to compete by matching those prices because they have to pay Apple exorbitant fees and it's unrealistic to expect them to provide their services at a loss for a long time. That is classic anti-trust.
This is not the case. The smart device manufacturers, that you say "Netflix" is using it's power to force itself on their devices, are adding Netflix of their own volition because customers would rather buy a TV with Netflix than a TV with no Netflix. Many already offer Netflix, Hulu, Youtube, etc as smart apps. They would love to offer Apple TV as a service as well. Apple won't allow them to do so, because it would eat into the profits of Apple TV boxes and other Apple hardware. Samsung would love to offer Apple TV as a service to its customers as it would just raise the market value of their TVs.
Netflix doesn't have any power to put Apple, Hulu, or anyone else in an unfair position. If Netflix lowers their prices, all the other platforms are on an equal playing field to lower theirs.
Now, if Netflix used its market position to force Samsung to NOT offer Hulu or AppleTV apps and only have Netflix as the single app on Samsung TVs, THAT would be anti-trust territory.
Another case of anti-trust is if Netflix had a war chest with enough capital to slash their prices so low for so long that others can't compete and would go out of business. This one isn't as easy to prove in court, but it's in the realm of the laws.
In any case, Netflix is not in any anti-trust position.
Apple makes its offering at the expense of other apps and platforms. I for example enjoy Dropbox as a service better than iCloud, and I would rather keep using Dropbox, but it's harder to justify it now since I have to pay extra for the pleasure. And Dropbox CAN'T drop their prices to match Apple's offering since they're already operating on a -30% loss on Apple platforms.
Apple is stifling competition and thus harming all customers across iOS and macOS devices. That is quite a substantial number of consumers harmed.
Definitely falls under anti-trust laws.