IronCAD - IronCAD is intuitive 3D CAD software that increases efficiency and can be used standalone or to complement an existing design environment.
Sculptura - 3D sculpting for everyone
Inventor - Inventor is a 3D CAD software that lets you quickly create 3D models with embedded intelligence, intuitive workflows, and optimized performance.
Nomad Sculpt - Nomad is a sculpting & painting mobile app, available on Android and iOS.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
PaintCube - Web-based 3D painting software