Except that isn't how it works. Both Netflix and Spotify had app versions which support in-app purchase and only the sign-ups in-app resulted in Apple getting a

Except that isn't how it works. Both Netflix and Spotify had app versions which support in-app purchase and only the sign-ups in-app resulted in Apple getting a cut. The problem both of these companies had was that the option to sign up in-app and have Apple manage the subscription was more popular than they hoped.