Stone system is not designed to help with better learning or ADHD specifically, but is designed to help with anger, stress and concentration problems, which are often underlying causes of ADHD.
If the root problem with your child’s ADHD is anger, stress and problems with concentration, Stone biofeedback system is helpful.
But there is an important question to ask.
Would she or he want to play games? Will they have motivation? If they are open to do it can help a lot.
By the way, it is fun to compete in the family. I play tournaments with my 5 year old daughter. We fight who first burns out a candle or who creates biggest drops of water just by using power of mind.