The grading system is fun for kids and adults. It grades correct and incorrect R productions.
Complete Speech made the lite version to help manage all the minor bugs as users provide their feedback.
https://itunes.apple.com/us/app/speech-racer-lite/id739540894?mt=8&utm_source=Master+List&utm_campaign=81590e6e13-NCSHLA+Poster&utm_medium=email&utm_term=0_e115296228-81590e6e13-288621381