Finally a great breakdown of the issue and a fair look into what both sides, namely Apple, are trying to do here.

> That, Apple said, is not what Hey is. Hey is a consumer app, paid for by users. And Apple takes issue with the idea that when one of those prospective users downloads the app, there's nothing they can do with it — they can't sign up, they can't pay, they have to go somewhere else before they can use the app. Apple doesn't like apps like that, at least when it feels they should be more accessible to their intended audience.