A fitness app is an application that can be downloaded on any mobile device and used anywhere to get fit and stay fit with personalized workouts, fitness advice and nutrition plans. It's designed to help a person reach their fitness goals by performing and tracking workouts and eating habits. Fitness apps have been beneficial to keep people motivated by offering personalized routines, creating competition among family and friends, and offering things like rewards.
References
Fitness app Wikipedia(Text) CC BY-SA