Do you, like me, hate marketing notifications in your iPhone apps?
Did you know that these apps are likely in violation of Apple’s Review Guidelines for the App Store?
« 4.5.4 Push Notifications must not be required for the app to function, and should not be used for advertising, promotions, or direct marketing purposes or to send sensitive personal or confidential information. Abuse of these services may result in revocation of your privileges. »
I suggest you write reviews (on the app page in the App Store) for apps that send marketing and promotional messages in their notifications, pointing out this violation. Unfortunately Apple does not provide a coherent way for users to report apps.