What are some alternatives?
When comparing Kodon and MasterpieceVR, you can also consider the following products
A-Painter - Paint in VR in your Browser
Tilt Brush by Google - Paint in spaces around you with Virtual Reality
Oculus Medium - Sculpt, model and paint in virtual reality on a 3D canvas.
VR Sketch - A tool for designers to draw inside virtual reality
Quill by Story Studio - Paint in virtual reality on an infinitely scalable canvas
Blocks - Empowering designers to build great websites without writing a line of code. For web and OS X.