I just used it to zoom in and turn the flashlight on with the iPhone camera. Works a treat and the shutter button is just a pause function, no more crapping up your photo library with dusty electronics unless you wanna save the photos!
This thing even has a bunch of nice accessibility features to describe what you’re looking at that are extremely imperfect but better than nothing. Just need to figure out if it can describe more/less color detail for specific objects.