You can subscribe monthly $25 for first child and $15 for additional children, or yearly $199 for first child and $129 for additional children.
I use the program with my twin eight year olds and a third grader I tutor with reading. There's a 14 day free trial. I really do love this program I've researched a lot and this is the only one of its kind I've ever promoted. Please check out the links and view some of the videos I share that walk you through the program.