Similar to this question: How to make ios App Store link with parameters?
I am interested in passing parameters to the download link in the iOS app store. From what
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Essentially this post tells you that you can pass a url parameter to the iOS App Store for iOS 6.0 and later using smart banners (http://developer.apple.com/library/ios/#documentation/AppleApplications/Reference/SafariWebContent/PromotingAppswithAppBanners/PromotingAppswithAppBanners.html), and this parameter will be passed on to your app and received in the application:openURL:sourceApplication:annotation: method in your app delegate (which you must implement).