Global Variable


The key representing the iTunes identifier for the item you want the store to display when the view controller is presented.


let SKStoreProductParameterITunesItemIdentifier: String


The value for this key, an iTunes item identifier, is an instance of NSNumber.

To find a product’s iTunes identifier, go to and search for the product, then locate the iTunes identifier in the link URL. For example, the iTunes identifier for the iBooks app is 364709193.