The above math formula is incorrect and a misunderstanding.
Wyze does not have a Cam Plus plan like that. It is either $1.99/mo per camera, or $19.99/yr per camera, or $9.99/mo for ALL cameras (up to 99 total cameras included in that price which would be as low as $0.10 per camera per month…but since you have 13 cameras it would be $0.76/camera per month). Or $99/yr for ALL cameras. So for you the 3-4 Math options are as follows:
Separate Monthly licenses per camera = $1.99/mo times 13cameras = $25.87/mo Times 12mo = $310.44/yr
Separate Yearly licenses per camera = $19.99/mo times 13cameras = $259.87/yr (equivalent of $21.66/mo avg)
Single Cam Plus Unlimited License for $9.99/mo or $99/yr which will pay for up to 99 cameras.
$99/yr divided by 13 cameras = $7.62/yr per camera (or $9.99/mo divided by 13 = $0.76/mo per camera)
So, to be worth it you only need 5 cams or more. $99/yr divided by 5 = $19.80/yr per cam avg, which means every cam over your 5th one is FREE. Or $9.99/mo divided by 5 = $1.998, again, meaning that every cam over the 5th one is FREE.
In no way will 13 cams cost you 2,112.24 CAD per year even at the highest rate.
It’s a no-brainer if you have 5 cams or more. Get the Cam Plus Unlimited. That’s what I have.