Apple takes 30% of every sale on the App Store. Their rules also include this tax on subscriptions and "in-app" purchases, as you're only allowed to use Apple's payment system.
Netflix actually stopped paying this 2 years ago when it forwarded their iOS users to the webbrowser instead of the App, bypassing these rules all together (Apple made almost a million $ a day from the 30% on Netflix App).
xCloud and Google Stadia probably can't do this (Also, there might be a rule that you can't have an App that's basically an App provider aka an iStore competitor. I know Facebook also had to jump through some hoops with their facebook games).
they want their 30% cut (Score:2)
Netflix actually stopped paying this 2 years ago when it forwarded their iOS users to the webbrowser instead of the App, bypassing these rules all together (Apple made almost a million $ a day from the 30% on Netflix App).
xCloud and Google Stadia probably can't do this (Also, there might be a rule that you can't have an App that's basically an App provider aka an iStore competitor. I know Facebook also had to jump through some hoops with their facebook games).