PK Fitness is an effort based activity tracker; a simple, easy to use workout journal and social network that helps you stay on track with your fitness goals! Use PK Fitness to track your own fitness journey, join challenges, and connect with others. PK Fitness gives individuals, trainers and fitness groups the insight to motivate and inspire real change in their fitness pursuit. Whether you’re a competitive athlete or simply trying to improve your fitness level, effort is the key measure to achieving your goals. Founded by Olympic gold medalist Bryan Clay and former tech executive Edwin Leonard, PK Fitness started as a simple idea: build an app that allows everyone, from veteran athletes to first timers, to share progress, compare workouts, and compete on a level playing field.






