Riven

Riven is an Apple Watch app that uses motion sensors and heart rate data to detect when a user has reached true muscular failure during strength training, distinguishing it from mere fatigue. Designed for serious lifters and athletes who want to optimize their workouts without guesswork, it provides real-time feedback to ensure each set is maximally effective. Its interest lies in transforming a subjective, experience-based metric into objective, data-driven insights, potentially revolutionizing how people approach progressive overload and recovery.