- Abs
- Biceps
- Chest
- Front delts
- Triceps
A new way to think about training
Train every
part of every
muscle.
Most workouts hit one part of a muscle and leave the rest cold. What Works What shows you exactly which parts you're training, which you're missing, and why a small tweak in form moves the target.
151
exercises
17
muscles
6
groups
Try it now
Drop a workout. See what it misses.
Barbell Bench Press
Chest
Incline Dumbbell Press
Chest
Cable Triceps Pushdown
Triceps
Covered
86%
Missing parts
1
What this workout misses
- Chest: Lower (costal)
- Chest
- Chest - Middle (sternal)
- Chest - Upper (clavicular)
- Front delts - Front delts
- Triceps
- Triceps - Inner triceps
- Triceps - Long-head triceps
- Triceps - Outer triceps
Lit parts are covered. Skin-tone parts are missed.
How it works
Three primitives. One brain.
01
Explore
Pick a muscle. See every part of it. See which exercises hit which parts - ranked by how directly they target the muscle, not just whether they involve it.
02
Learn
Each exercise has a complexity score, common mistakes, where you should feel it, and a ranked list of variations showing exactly how shifting a wrist or an elbow moves the target.
03
Build
Drop exercises into the audit. Watch your muscle map light up. The optimization score breaks down exactly which parts of which muscles you're missing - and the smallest fix.
Why this is different
Other apps say “chest day”. We say which part.
Others
Most apps track which muscle you trained.
This app
We track which part of the muscle — long head vs short head, upper vs lower, VMO vs quad sweep.
Others
Most apps recommend exercises at random or by algorithm black box.
This app
Every recommendation shows why: which gap it fills, how fresh that part is, and what the science says.
Others
Most apps lock the good stuff behind $80/year subscriptions.
This app
All of it — gap analysis, ranked variations, weekly planning — runs in your browser. No account. No paywall.
The optimization score
A score is useless without the why.
We don't hand you a number. We hand you the breakdown. Coverage, variation, supporting muscles, warm-up, engagement style - each with an explanation of what to fix.
Muscle coverage
92All parts of every target muscle are getting work.Variation
80Healthy mix of movement patterns prevents plateaus.Supporting muscles
60Consider adding direct rear-delt work to protect shoulders.Warm-up + cool-down
55No cool-down stretches included.Engagement style
75Mix of strength and hypertrophy - could add stability work.
Featured
A few of the most underused.
Biceps
Incline Dumbbell Curl
A long, almost uncomfortable stretch on the outer bicep at the bottom.
Hamstrings
Romanian Deadlift
Strong hamstring stretch at the bottom - almost uncomfortable. Glute squeeze on the lockout.
Triceps
Overhead Triceps Extension
Deep stretch in the back of the arm at the bottom; locking out the elbow finishes it.
Ready