Transform Your Workout
Track every rep, set, and weight. Watch your progress soar with Decaboy — the ultimate gym companion for serious bodybuilders.
Why Decaboy?
Weekly Splits
Organize your training by muscle groups per day. Plan your perfect weekly split.
Track Progress
Log weights, sets, and reps. Visualize your strength gains with beautiful charts.
History Log
Never forget your last workout. See improvement over time per exercise and muscle.
Mobile Ready
Designed for the gym floor. Check your exercises on any device, anywhere.
Light & Dark
Choose your vibe. Seamless theme switching for day or night workouts.
Goal Focused
Set your fitness goals and track what matters — muscle gain, strength, or endurance.
How It Works
Create Account
Sign up and set up your profile with your stats and goals.
Plan Your Split
Assign muscle groups to each training day of the week.
Hit the Gym
Log your exercises, weights, sets, and reps during each workout.
Track Gains
Review charts and history to see your strength progression.