> Push Notifications should not be used for promotions or direct marketing purposes unless customers have explicitly opted in to receive them via consent langua

> Push Notifications should not be used for promotions or direct marketing purposes unless customers have explicitly opted in to receive them via consent language displayed in your app’s UI, and you provide a method in your app for a user to opt out from receiving such messages. From (section 4.5.4 of) the App Store Review Guidelines. GP is incorrect on many points.