I know RevoPoint is working on the USB connection for Mac versions, and I hope you solve it.
I’ve had the POP scanner for months from the original Kickstarter but haven’t been able to even try it because my cellular plan costs extra $$$ to add hotspot capability…
If you don’t have a hotspot on your iPhone, then you need to use another phone/router to set up a hotspot. Then use your iPhone to search for this hotspot.
It is similar to the iPad connection method. Please check this post: [Guide] How to use Handy Scan on your iPad