It allowed users to plot data and draw freehand curves, filled areas, and text labels on a coordinate plane.
OmniGraphSketcher had its origins in Graph Sketcher, a Mac OS X application created by Robin Stewart that was first commercially released in 2006.
[1][2] The software was influenced by Stewart's academic research integrating data plotting with freehand illustration user interfaces.
[3][4] The Omni Group acquired Graph Sketcher in 2008 and launched OmniGraphSketcher for Mac in March 2009,[5][6] followed by an iPad version in April 2010.
[7] In July 2013, the Omni Group discontinued OmniGraphSketcher, and in January 2014 released its source code under an open-source license as GraphSketcher.