ADInterstitialAd is a wrapper around the ADInterstitialAd class found in the Apple iAd framework and is only available on iPad.
It provides full-screen advertisements that your iPad application can display to the user.
Please note that this class is a thin wrapper around the iOS native iAD class, so care should be taken when creating/destroying instances of it frequently. If you need to show ads frequently, instead of constantly destroying and recreating the object you should manually call ReloadAd, or create an auto-reloading ADInterstitialAd.
iOS.ADInterstitialAd class is obsolete. Apple iAD service discontinued.