I have an old iPhone that I am replacing with a new iPhone. I used iTunes to back up the old iPhone, then restored that backup to get the new iPhone set up, moved the SIM card over, everything is mostly working.
EXCEPT that there are a few apps that I (legally) purchased which are on my old phone and have not moved over to my new phone. It appears to be the case that these are old enough apps that they are no longer for sale in the iTunes store.
There seems to be a bunch of infrastructure built into iTunes for transferring purchased items, including apps, onto my PC, and then onto my new phone. But none of it seems to work, despite my best googling.
I also tried an app called AnyTrans, which seems precisely designed to do this kind of thing, but it failed, saying that it was incompatible with the new version of iOS.
Anyone have any idea what I need to do?