It’s 2024 and still working great
This simple app allows you to take pictures with your iPhone camera, remotely, from an iPad. I use it to photograph pictures that I convert to digital images. I set the iPhone in a mount, over the picture, and use the iPad to center the subject photo under the camera without having to look at the iPhone screen. When I am satisfied with the lighting and positioning. I remotely trigger the iPhone’s camera to capture the shot. I then review the result on the iPad and repeat the process with my next picture.