Apps no longer there?

From USA TODAY How to hang on to an orphaned app Q: I had an app on my iPhone that's no longer available on the App Store. Is there a way I can keep it backed up, then transfer it to another device later on? A: I know what you're thinking: This reader is asking about a certain bird-brained game that mysteriously vanished from the App Store last week. In fact, I got this query months ago from a reader who wanted to keep using a radio app that had left the Store. But whatever the orphaned app is (seriously, why are you all so obsessed over Flappy Bird?), it's not welded to your device, and you should be able to get it on another one without resorting to overpaying for used hardware on eBay. http://usat.ly/1b9gCxZ Get USA TODAY on your mobile device: http://www.usatoday.com/mobile-apps