It's difficult to find numbers on the various CAD software...

It's difficult to find numbers on the various CAD software subscriptions worldwide and millions don't pay at all - illegal downloads. Paying customers for all CAD softwares total in the millions, probably 10M+ (Autodesk alone has 4 million customers). I don't know how big the demand is for Mindesk, but the business would be wanting to target several thousand. There is still a lot of development and marketing to be done - educating customers on the benefits. They've been around for a few years, so the initial traction should be happening,