Newbie - Wyze Cam OG

OK, just got 2 Cam OGs via Amazon today. Have a few questions:

Tips for setting up? These are the first WiFi/Smart cameras I’ve owned. Please explain to me like I am 5. I need to get these going ASAP. Our cat escaped via an open garage door 5 days ago and it is 20 degrees here. We have been seeing paw prints from our deck to neighbors but have no idea where under the deck she has been hiding.

Will I be able to view real time footage via my IPhone with the app or do I need something to do that? If so…what??

Appreciate the help in advance