3Design CAD is described as '3D CAD computer software solution for creative 3D design, 3D Modelling for jewellery : jewelry design software for jewellers and jewel designers, accessories and watch industries' and is an app in the development category. There are more than 10 alternatives to 3Design CAD for Windows, Mac and Rhinoceros. The best 3Design CAD alternative is Autodesk Fusion. It's not free, so if you're looking for a free alternative, you could try Autodesk Fusion. Other great apps like 3Design CAD are MoI - Moment of Inspiration, TYPE EDIT, Jewelry CAD Dream and MatrixGold.
Rhino have more wide area of usage and many additional paid solutions.