Astute Graphics

Phantasm CS
Trial versionApply Curves, Levels, and much more, adjustments directly in Adobe Illustrator
MacPhantasm CS Designer
PaidMid-range Adobe Illustrator color control plugin
Windows
SubScribe Designer for Illustrator
FreeDraw simple objects, circles, and arcs.
Windows
DrawScribe
Trial versionCreate and edit shapes and dynamic vectors on PC.
Windows