These fitness apps let you know whether you’re doing an exercise right

It’s easy to cheat during a workout if no one’s watching. It’s also hard to tell if you’re doing an exercise right without a coach’s feedback.

So why aren’t more people working out? According to the CDC, 1 out of every 2 adults and nearly 80% of high schoolers in America still don’t get enough exercise. That packs on $117 billion annually in additional healthcare cost, too.