TLDR Apple will surely win on iOS (and by extension in the US), at maturity market will probably be split around 60%/40% in Apple's favour. On Android apple isn't relevant and Spotify will be the dominant platform.
1. Apple benefits from being pre-installed on iPhones. the competitive landscape is similar to the Apple/Google map wars. despite Apple maps being significantly worse than Google maps, it was used 3.5x more.
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