Vectary - Vectary is a free, online 3D modeling tool and sharing platform.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Modelo - 3D design collaboration reimagined
ZBrush - ZBrush is a digital sculpting and painting software solution.
VR Sketch - A tool for designers to draw inside virtual reality
Cinema 4D - Cinema 4D is a 3D modeling, animation, motion graphics and rendering application.