How can I install "Find my iPhone" on an old iPad 3?
I've recently gotten a new iPad, but my old iPad 3 is still working fine. So I've done a complete wipe on it and I've given it to a friend who has little interest in computing: she just wants to email and get on the internet. My friend will have to undergo surgery next week and will take the iPad 3 with her to the hospital -- she'll be in the hospital for a week or two. Before she went, I wanted to install 'Find my iPhone' on the iPad 3 in case it goes walkabout in the hospital.
However, when I tried to install it, AppStore insisted I upgrade to iOS 8, which I don't think the iPad 3 can pull off. I once upgraded to to iOS 5 or 6 and regretted that real soon -- the iPad 3 just doesn't have the processor speed to handle all that advanced stuff. It's doing fine on iOS 4 and I want to keep it that way. Is there some way to make AppStore install the old 'Find my iPhone'? I still have some backups of the iPad 3 pre-wipe -- could I extract 'Find my iPhone' from there and put it back on the iPad 3 without doing a full restore? Is there some other way we can keep track of the iPad 3 without updating?
iPad, iOS 4.3.3