Useless
I have the EF IP Sidekick device which powers a camera, assigns it an IP and provides a WiFi network for me to join with my iPhone XS. The hardware unit works but this app always shows “no devices on the local network” even when I am connected to an access point on my network where I have multiple cameras. It also looks like it hasn’t been updated in years as it does not fit the larger layout of iPhones made after about 2016. This was billed as a professional installers tool a few years ago when I bought the device but, given the horrible app, it is basically useless. If you don’t know the default IP of the camera then you certainly cannot find it using this tool.