In the past I had usb endoscope
But I'm now after a WiFi version
Must be compatible with Android , I know they probably all work either android or iOS but thought I'd mention it
Thanks
Does not help you, but I have one but that has a build in display though. Never thought about being connected to a phone though as you are attached to the unit whilst moving
https://z4-forum.com/forum/download/file.php?mode=view&id=94796g it about.