Apps are not allowed to advertise other ways of subscribing when in-app subscriptions are an option. From section 3.1.3(b) of the guidelines: "You must not dir

Apps are not allowed to advertise other ways of subscribing when in-app subscriptions are an option. From section 3.1.3(b) of the guidelines: "You must not directly or indirectly target iOS users to use a purchasing method other than in-app purchase, and your general communications about other purchasing methods must not discourage use of in-app purchase." (https://developer.apple.com/app-store/review/guidelines/ https://developer.apple.com/app-store/review/guidelines/)