To find the local IP address of your camera (e.g. 192.168.1.22, or 10.0.1.15), we recommend using the Fing app for iOS or Android after you've joined your smartphone to the same WiFi Network that your cameras use.
The Fing app scans your local network to find devices attached. It reports the organization that makes the network card of the device, so the reported names may not match the name of the camera manufacturer. For example Sharx cameras will usually appear as REALTEK SEMICONDUCTOR or Shenzhen Ogemray Technology.