"Coach's Eye is designed to give athletes the ability to see themselves, and see exactly what they're doing wrong, so then they can correct themselves right on the spot," says Josh Carrasquillo, a marketing associate techsmith.
The app is useful not because we live in a "now" world that needs instant gratification, but it's useful for athletes to fix their problems before they become bad habits or cause injury.
"I remember when I was a kid playing baseball, and I would swing a thousand baseballs off the tee and I would still be doing the same thing wrong. If somebody would've just been able to show me on their mobile device what I was doing wrong, I would've been able to correct it right there," says Carrasquillo.
The app allows coaches to record part of practice and then break down the film on the spot using slow-mo, zoom, pan and telestrations.
They can then email or text a clip to you, Facebook, Twitter or YouTube.
"Some of the best sports to use Coach's Eye for are stick-and-ball sports, so baseball, golf, tennis. But you find it very much in weightlifting, crossfit - it's pretty much everywhere," says Carrasquillo.
At Iron Warrior Crossfit in Troy, trainers find it incredibly useful.
"The Coach's Eye gives me and the athlete the ability to see what they're doing wrong. Sometimes the movements become so fast that I may miss some of the movements. So to be able to go frame-by-frame, or to slow down, it actually catches some of the technique that I may be missing with just the naked eye," says Sherry Hopkins, co-owner and head coach at Iron Warrioe Crossfit.