One of my work apps is no longer on the App Store. I've backed up my iPhone 6 and did an iTunes restore on the iPhone 7. The app is not on the iPhone 7. Looking on the internet on how to transfer a single app reveals a lot of articles with methods that seem to no longer work in iTunes 12.5. With the iPhone 6 connected to my PC, I have chosen to transfer apps to this PC, but the folder where the .ipa files should be is empty (...MobileApplications). So, I'm not sure why that doesn't work. I found an app called iMazing that is supposed to transfer apps, but it wants me to turn off "Find My iPhone" to restore the app and restart the iPhone, which I don't trust doing on this app (although the app does seem to be legit). Ideas how to get this one app from my iPhone 6 to my iPhone 7? Thanks!