This color wheel is right! – iWheelColor Review

Additive primaries (eg for light) are triangulated as Red Green Blue; subtractive primaries (eg for pigment) are triangulated as Cyan Magenta Yellow. Its based on Newtons Color Wheel. It appears that CIE Lab color parameters are given on the 2nd tab of the application, along with other descriptive mathematical parameters that describe the selected color. If you are used to the traditional Munsell Color Wheel that artists working with pigment use, it will be confusing until you get used to it.
Review by ColorWheelGuy on iWheelColor.