If you get that system let us know how you like it. I have the original Scopecam universal adapter and have really liked it over the years. When I get my next new phone I was leaning towards picking up the mag plate adapter instead of using the sticker attachments again on a new case. I haven't seen too much talk of people using the new mag plate and how it works out. Anyone have experience with it and the old adapter to compare? It looks like the mag plate adapter might put the camera lens a bit further from the optics than the old universal system did. I'm not sure if it would be enough to make a difference or not but that and getting a repeatable setup with the magnet are my only two minor concerns. I've really loved the original Scopecam and have used it with a couple of phones over the years.
The Ollin system looks amazing but they don't support my current phone and it's not a universal adapter like the Scopecam is. I use mine on my binos and two different spotting scopes so the universal attachment really comes in handy.