If 3D modelling is an essential part of what you do, then nanoCAD Pro is the best CAD software for you. Whether you need hundreds of CAD seats for your organization, or just one for your home office, this best architectural cad software offers the supreme combination of cost, volume, ability, and quality. nanoCAD Pro is more advanced version of nanoCAD Plus. It comprises Autodesk Inventor-style tool forModelling and parametric design which suits for much more advanced tasks. It is available as 32-bit and as native 64-bit versions in it. nanoCAD Pro is designed for Microsoft Windows (XP, Vista, 7, 8, 10).