* Screened apps - Apple only lets "safe" apps into the store. * Discoverability - Apple in theory lets users find apps that they didn't know about before. Customer Acquisition * Payments - Apple makes it easy to accept payments, for their 30% fee.
One or all of those are useful and great. Where I have an issue is when they use one (the required screened apps aspect) for force you into the others.
Hey wanted an app on the store, as an extension to their primarily web based experience. But they couldn't purchase just the rubber-stamp that says they're not malware and the app store hosting. They were being forced to buy into all 3.
That feels like using an existing monopoly (actually a duopoly w/ google's similar practices) to force developers to purchase products they don't want. Hey didn't want to accept payments via apple, but Apple's market power and decisions were focused on forcing them to.
If Apple had a yearly fee of $1000 (arbitrary number, maybe pay per download or device or whatever), for an app to simply be reviewed & hosted, that would be reasonable. They provide a service, businesses can opt into that. But they're taking their core value prop of "closed app store helps customers" and forcing their way onto "and now you have to pay us a portion of revenue".