Plasticity

FreeCAD

FreeCAD is a free and open-source 3D parametric modeler that allows users to create complex 3D models using a variety of tools and techniques. It is designed to be highly customizable and extensible, with a large community of users and developers contributing to its development.

Rhino 3D

Rhino, developed by Robert McNeel & Associates, is a general-purpose 3D modeling application described by its maker as a jack-of-all-trades used across architecture, marine design, jewelry, industrial design, and film. It handles free-form NURBS surface modeling as well as newer SubD tools, letting users design, present, analyze, and prepare models for manufacturing or 3D printing. Rhino is sold as a one-time perpetual license rather than a subscription, with no required maintenance fees, and includes Grasshopper, a visual programming environment for generative and parametric design that has become widely used in architecture and computational design workflows.

Shapr3D

Shapr3D is a professional 3D CAD modeling app built on the Siemens Parasolid engine, the same solid-modeling foundation used in professional CAD systems. It combines push-pull direct modeling with sketch-based parametric constraints, and it is unusual in supporting native Apple Pencil and Windows pen input so users can sketch 3D geometry the way they would sketch on paper, in addition to running as a conventional desktop app. The app includes built-in AR for placing full-scale models in the real world, generates 2D technical drawings for manufacturing handoff, and imports/exports common formats including STEP, IGES, SLDPRT, SLDASM, STL, and 3MF. Cloud team spaces add shared projects and browser-based review links, and Apple Vision Pro support lets users review models immersively. It targets industrial and product designers, manufacturing teams, and makers who want manufacture-ready models without a purely desktop-bound workflow.