Im finding more and more games while it states its universal and will play on your device which in my case is a iphone im left feeling frustration as im tapping away on the screen with no response from the said game. Before you comment and say its my screen on my iphone going no its not the screen is clean and with no marks on. Games that normal fall into this grrr and tap and tap again are it seems your typical suited better for ipad then iphone take one example cosmic colony i often find when i tap to pick up the item say dropped by the building i either end up tapping the building again or find im tapping the same spot more then once before i tap the "sweet" spot to collect the item.