Invision - Prototyping and collaboration for design teams
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Proto.io - Create fully-interactive high-fidelity prototypes in minutes that look and work exactly like your app should. Sign up for a free 15-day trial and get started.
Autodesk 3DS Max - 3ds Max is software for 3D modeling, animation, rendering, and visualization. Create stunning game enrivonments, design visualizations, and virtual reality experiences.
Balsamiq - Balsamiq. Rapid, effective and fun wireframing software.
ZBrush - ZBrush is a digital sculpting and painting software solution.