I use a dropcam at home aimed at the dog crate so I can check in on her. I can also talk to her on it. Very simple easy device and intuitive ap.
I also had an iBall from our previous TV that didn't have a backup camera. It functioned. The part that plugged into the 12v outlet in the truck was flimsy, you can't turn it by the silver parts or the black plastic will crack open.
But it did, indeed, allow me to hitch up alone.
2015 Coachmen Freedom Express 292BHDS Blue Ox WDH
2015 RAM 1500 4X2 CrewCab, 5'7'' bed, 3.93 gears, 5.7L 8-speed VVT, Payload 1608, Max tow 10,400