[Aaron2222]

So what makes digital artifacts (especially those that don't have anything to do with Apple's platforms) different from physical products. Would Apple be wrong to ask for 30% of purchased made through the eBay or Amazon apps?

[throwaway290]

It seems like it's their product and their right to draw the line wherever they see fit. They risked investing a lot of time and money into a platform that apparently now counts as best user experience. There is no ethical challenge, software developer gets access to wealthy customers thanks to Apple's decades of work.