In terms of syncing Android with iTunes and iphotos (photos app), what's the best app or tweak to use?
I used to have a Nexus 5 - by far and away a superior phone and OS to iPhone 6 and IOS - but the problems with syncing iTunes and iPhotos is what sent me back to an iPhone.
ISyncr on Android for iTunes
Just use the USB cable into your mac should bring photos into the photos app. Or store them in the cloud with Google Photos