CertainError was founded by Dr. Ronald S. LaFleur with support from the Shipley Center at Clarkson University. The company’s current products include the CertainError Uncertainty Calculator app for Apple and Android devices and CertainError Software, in three formats to enable integration of Duals arithmetic into existing applications. The website also offers educational materials in the form of a Help menu for the app, Tutorial videos on the CertainError YouTube channel and posts of Industries and recent projects.