TrackIR - TrackIR adds depth to the PC gaming experience by enabling players to take control of the in-game view.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Eyeware Beam - Turn your phone into an eye & head tracker!
Cinema 4D - Cinema 4D is a 3D modeling, animation, motion graphics and rendering application.
FaceTrackNoIR - FaceTrackNoIR is only available for Windows-based PC's (sorry, we have to start somewhere) and...
Autodesk Maya - Maya is 3D computer animation software with powerful modeling, rendering, simulation, texturing, and animation tools for artists, modelers, and animators.