I also wonder why Apple allows some apps to accept payments via credit card yet others need to use the built in payment solutions?
EDIT: some research later indicates that it's possible allowing a user to sign up outside the app (and outside a webview initiated by the app) skirts around the policy [1], since the user can return to the app and log in, then use their account for payments.
EDIT: some research later indicates that it's possible allowing a user to sign up outside the app (and outside a webview initiated by the app) skirts around the policy [1], since the user can return to the app and log in, then use their account for payments.
[1] https://www.designernews.co/stories/9695-how-do-apps-like-ly...