Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Craftwork - A collection of User Interface resources made by Craftwork
Cinema 4D - Cinema 4D is a 3D modeling, animation, motion graphics and rendering application.
Previewed - Beautiful mockups & graphics for your next app
Autodesk Maya - Maya is 3D computer animation software with powerful modeling, rendering, simulation, texturing, and animation tools for artists, modelers, and animators.
Design Camera - Drag and drop 3D mockups