Today, smartphones have become an essential part of our daily lives, as from alarm clocks and calculators to cameras and GPS systems, they are hardly just for phone calls these days.
Now, the ubiquitous gadgets have taken on a role of a fitness coach as well, the New York Daily News reported.
Engineers have developed a new app, which when synced to high-tech wristbands, can calculate everything from steps taken to calories burned.
Hollywood has apparently given the track-your-health trend a thumbs up, with actress Gwyneth Paltrow advertising the UP band on her blog.
Other celebs like Kanye West and Serena Williams have also been photographed wearing another tracker, the Nike+ FuelBand.