I can see a reasonable processing fee, and even a reasonable establish-the-purchase fee. Perhaps in the order of - or a bit more than - a credit card. So maybe somewhere between 5 and 15%. (Depends on how much more likely users find an apps through the app-store as opposed to a web search.)
Anything above is abusing Apple's market dominating position. Especially because there are no (official) ways to install 3rd party apps on iPhones et al.
I can see a reasonable processing fee, and even a reasonable establish-the-purchase fee. Perhaps in the order of - or a bit more than - a credit card. So maybe somewhere between 5 and 15%. (Depends on how much more likely users find an apps through the app-store as opposed to a web search.)
Anything above is abusing Apple's market dominating position. Especially because there are no (official) ways to install 3rd party apps on iPhones et al.
Just MHO.