Sound like you expect to find something with wifi ?
And i think people that have tried that approach to getting footage of the dashcam quickly turn into what the rest of us do, and that's take out the memory card and put it in a card reader to transfer the footage at full speed ( 80 MB/s on many cards ) to the computer.
I do myself have a few action cameras that allow for connection to my phone using wifi, but i never once contemplated using that to get footage off the camera or share it at once ( not a social media junkie )
Though i have 32 Gb + 128 Gb os memory in my phone, then i would not use that for camera footage, and i have a sneaky feeling it would also be slow to get the footage off the phone when i got home, or at least way slower than what the read speed are on my memory cards.
And it do annoy me that i have to turn off mobile data to use that camera/phone connection.
Experimenting i found out that a inward facing camera ( need to be up high and in the middle of windscreen ) make for okay captures of the inside of the car in the daytime, but kids can still hide behind the front seats that do block the view out back.
And as the sun start to fade the light levels inside the car will become problematic for the camera to make good captures.
What car do you have ?
If you place dashcam in the ideal place ( top windscreen and middle ) then even if it could swivel around the rear view mirror will be in the way.
Side camera ( a - pillar ) my big head block a lot.
Up high but turrned in a selfish manner, i still think this is the best location for a cabin camera, in this drive i think the little action / dash camera are mounted on the driver side sunshade.
This is better but the camera should have been mounted on the stalk of my rear view mirror instead.
And this is why you should not have the camera down low, as you can see people in the rear seat of my mini car would be gone behind the front seats.