Firefly Fitness is described as 'Firefly uses your device's camera to score your form and provide real-time feedback, helping you activate muscles effectively without expensive hardware or wasted time' and is a Fitness Tracker in the sport & health category. There are more than 50 alternatives to Firefly Fitness for a variety of platforms, including Android, iPhone, iPad, Android Tablet and Web-based apps. The best Firefly Fitness alternative is Kenko, which is both free and Open Source. Other great apps like Firefly Fitness are Workout Cool, Liftlog, Workout.lol and Feeel.