Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Balsamiq - Balsamiq. Rapid, effective and fun wireframing software.
ZBrush - ZBrush is a digital sculpting and painting software solution.
Invision - Prototyping and collaboration for design teams
Cinema 4D - Cinema 4D is a 3D modeling, animation, motion graphics and rendering application.
Zeplin - Collaboration app for UI designers & frontend developers