One of the things I really like about the iOS subscription billing ecosystem is that there is one centralized place to see all my subscriptions.

I hate that it's hidden behind four clicks in "Settings", but, once you find it, it's very nice to be able to have one place to go "oh yeah I should unsubscribe from that crossword app I haven't opened in three months". By comparison, for other sites, I have to go find my username/password in a login manager...