What are some alternatives?
When comparing VR Sketch and SprayPrinter, you can also consider the following products
Tilt Brush by Google - Paint in spaces around you with Virtual Reality
MasterpieceVR - Powerful VR sculpting & painting tool
A-Painter - Paint in VR in your Browser
AI Painter - Turn your photos into paintings
Poly by Google - Explore the world of 3D
Snap Art - Snap's augmented reality platform