XtraMath classroom is used for helping students to master subtraction, addition, multiplication and division facts. With a combination of spaced repetition, XtraMath uses timed quizzes and practices to encourage students to answer questions quickly and efficiently to develop recall.
XtraMath can be used by teachers with their students at school or parents with their children at home. The XtraMath website is free; however, the XtraMath app charges a fee. The app is available on any device that runs on iOS 7 or later, such as the iPad 2 or later, the iPhone 4 or later, and the iPod Touch 5 or later. The app is currently not available on Android, Kindle or Windows Phone, as of May 2015.