This app has helped me several times when I needed a remote camera in a location nearby that I could not get to myself, or if I needed to discreetly watch my pets. You just have to install the app on two phones and then pair them; one is your camera, and the other is the remote. One feature that I wish the developer would add is this: on the remote phone, if I switch to a different app, when I switch back to the PairCamera app, it seems to have lost the connection. I would like for it to maintain the connection if possible. I am using iPhone 12’s.