ACCA Ductwheel IBApp Title: DuctWheel
Company: Air Conditioning Contractors of America
Price: $9.99
Platform(s): iPad

The ACCA DuctWheel is a mobile version of the association's Duct Sizing Slide Rule, which is used by contractors nationwide to determine proper sizing of residential duct systems in accordance with Manual D, the national accredited standard for residential duct design. Using the DuctWheel app instead of the standard duct slide rule, contractors and designers can lock the wheel in place, zoom in for easier reading, flip between two wheels for different calculations, or take a screenshot of the wheel in position.

“DuctWheel features the same, easy-to-use wheel interface that technicians and contractors have been using for years. They already know how to use it to get accurate results. But DuctWheel never wears out, and it’s even easier to use than a standard slide rule — since you can lock it in place, zoom in, even take a screenshot," said ACCA. "It’s the only mobile duct measurement app that is powered by Manual D, and it’s the only duct sizing app created exclusively for the iPad — taking full advantage of native iPad graphic and screen capabilities."