We have 2 iPhones and 2 computers (PC and Mac) in our house. On Computer "A" I purchased an app which was installed on iPhone "A". I want this app on iPhone "B" and computer "B" without having to buy the app again. I am keep being told I can do this but can't figure out how. I authorized both computers but when I did the transfer thing from iPhone "B" to Computer "A" it copied ALL the songs from the iPhone. It did not copy any apps. Plus I don't want to copy every song or app, just specific ones. Help!