I believe the psychology behind making an e-payment comes in many forms. If you really want to listen to music ads-free on Spotify you will pay for Spotify even

I believe the psychology behind making an e-payment comes in many forms. If you really want to listen to music ads-free on Spotify you will pay for Spotify even if it means going outside of the app. On the other hand if it is the type of payment that is more on-a-whim in nature, etc, then perhaps it’s justifiable for the os (i.e. whereon the experience runs) to take a fair share. As an iOS developer who started writing Obj-C 8 years ago and witnessed and felt first-handed the overall evolution of the language environment (which subsequently led to the birth of Swift and its continuation into what I considered to be the most interesting thing about Apple now), I think 30% is fair considering it has and would continue to contribute to (and in some sense incentivise) Apple’s decision in allocating (what occured to me as) an amazing amount of resources in improving the iOS (and Swift) developer experience. Great languages (and great developer experiences) don’t come cheap. And I won’t be surprised if the top executives of a multi-billion video game company fails to realise that.