I'm also interested in the app this uses or can you view with other 3 party apps?
If this has a SD card can you view the images on the card with out removing it?
It has it's own app. (I don't know about 3rd party use). One of the reasons I selected this camera is it's
Alexa compatible. Which means I can say to my Alexa Show "show me the driveway" and it displays on the little screen. I have done the same with other cameras too. And yes it can record to a camera mounted SD card for viewing on the connected smart phone. It has cloud available as well.
I still use HD DVR wired cameras too... as well as 4 wifi cameras (3 different brands). I am using a combo of cloud, HD, SD card, and remote and easychair viewing.