On Google Play
See what yourtraining is doing.
A live body map, updated every set.
Free. Runs on your phone. No account.
From first principles
Per-muscle dose derived from joint torque, moment arms, and effort.
Change your stance, grip, or implement and the recruitment recalculates. Each exercise is modeled as a movement pattern with anatomical joint actions.
A model of your body.
Every set updates the model. Muscle dose, recovery state, cumulative tonnage, balance, all recomputed every session.
Fast to log. Clear to read.
Weight. Reps. RIR. Logged in seconds. Every set feeds the model.
After every session, see the session.
A color-coded body map shows which muscles were stressed and how hard, front and back. Tap any muscle to see the exercises that worked it.
Patterns emerge.
Weekly rhythm. Monthly balance. Long-term accumulation. Strength trends beside muscle exposure. Drill month → week → day → exercise.
Start with a proven structure.
Push/Pull/Legs. Upper/Lower. Or build your own. Your plan lives in the app, ready when you show up.
Log a set. See your recruitment map.
More of what's inside
Monthly breakdowns, balance charts, and the details that make training clearer.
Questions
Is it free?
Yes.
Where does my training data live?
On your device.
Android only?
Android is live on Google Play. iOS is on the roadmap.