Livebrush is a simple drawing program with a lot of potential. Developed by David Fasullo
License: Free
Autodesk SketchBook is a versatile drawing app with strong layer management, brush customization, and export options, making it suitable for detailed illustrations. In contrast, Livebrush focuses on unique vector capabilities and animation tools, catering more to creative experimentation but lacks some of the robust features found in SketchBook.