Last time I have checked Apple's appstore rules, if you don't take payments within an app and you DON'T tell users of an app to pay outside of it, you are clea

Last time I have checked Apple's appstore rules, if you don't take payments within an app and you DON'T tell users of an app to pay outside of it, you are clea from their tax. So, for example, if you ask for their email and then email them to pay via their website, they won't bother you. Has this policy changed? Or does Fanhouse ask for payments from within an app?