I have a new iP4s in which I paid for an app...actually, several apps now. I am trying to install iton my older iP4 that my wife is now carrying, but the App Store is listing the price and it looks like I need to pay for it again. I have connected them to the same computer and backed up and transferred purchases, but it still does not show up. OTH, it does show up on my iPad as purchased. Any ideas? Thanks!