I've used a tines up phone cam for a few years now. They have branched off and are now under their own phone cam umbrella.
I see they are now changing up their mounts to make them more universal, but compared to the magview I think they are still lacking in that new system, but they are trying. I have the older compression adapter on a 2nd phone case that I swap into when I know that I may need to use it. It mounts on the spotter or bino quickly.
https://scopecamadapter.com/phonecam/
That looks like a decent product, and may look at it closer when its time to upgrade mine.