Is it possible to backup only one app and have everything fresh on the 5S? I was one of the lucky few to purchase iTether before it was pulled from the App Store. If I delete the app on my phone, I cannot re-download it from the store since it i sno longer available. I have it backed up onto iTunes but it is backed up with all of my settings. If I buy a 5s, can I install it brand new and then connect it to iTunes and only bring that one app over?