The WebView comes with every CamPlus license. Each licence is for one cam. So if you pay for 5 CamPlus on 5 Cams, those 5 will be in the WebView window. There is no additional charge for WebView beyond the CamPlus license on each individual cam. Be aware though. WebView is only in Beta development so it is still being tested and tweaked.
When I mentioned SD, I meant the SD card. However it does raise a point. If you record continuous to the SD Card, you will get twice the recording time (length of video end to end) by recording in SD quality rather than HD quality.
In fact, there is an Unlimited plan for CamPlus with annual $99 or monthly $9.99 for 99 licenses… IF it is still being offered. That is what I am on.
If you are interested, try this link from a post from @carverofchoice, one of the best Mavens I have found in the forum!
Also, I am not very familiar with CamPlus Pro as I don’t have it. So, not sure how that works with hardware… @WildBill posted above, he probably has better info than me.
Hope all this helps! Be safe and well!