Released and available for purchase and download on December 17, 2009. Buy for $0.99.

SigmaCalc is a Six Sigma process calculator that allows the user to calculate the Sigma value of any process -- manufacturing, transactional or service. If offers a slick interface for quick computations.

Six Sigma process calculator fields include units, opportunities per unit, defects and shift. Six Sigma process calculator output fields include defects per unit, DPMO (defects per million opportunities), defects (percent), yield (percent) and process Sigma.

Developed by the same person who founded iSixSigma (www.iSixSigma.com), the premier Six Sigma media company and publisher in the world.

Bonus: the about page includes definitions of all the input and output variables so you have a full understanding of your process.