Muscle Gain Build lean muscle with precision tracking of strength, nutrition, and body composition. What it does The muscle-gain skill transforms your fitness journey into a data-driven process. Log body weight and measurements to track lean mass gains, monitor daily protein intake against personalized targets, and record strength progression across your key lifts. Automatically surfaces milestone achievements and flags underperformance to keep you accountable. Built for serious lifters, casual athletes, and anyone committed to measurable gains. Usage Log measurements Track body weight, chest…