I have to say that this article is horribly unclear. It says that if you link to selling digital add-ons outside of the app, you have to sell them in the app.

I have to say that this article is horribly unclear. It says that if you link to selling digital add-ons outside of the app, you have to sell them in the app. Then it goes on to say that one could "side-step" the requirement by not having a "buy" link at all in the app, but still selling the add-ons elsewhere. Fair enough... But then it says Apple still requires you to have a buy link in the app if you sell any add-ons/subscriptions externally whether the app has a link to them or not. So, which is it?