-burn calories without jumps and jolts -suitable for retinal and joint issues -low impact but effective -moves and music are designed to entertain you while you workout. I created this app for people that had to give up running and jumping. Sometimes it's a joint problem, other times you need to avoid jolts to protect your eyes if you have a retina problem or have had retinal detachments. In these cases it is sometimes difficult to find an effective aerobic workout. No jumping jacks, skips and