Progression
without the noise.

A focused training log for real strength work. Log the set — the timer does the rest.

Available on iOS

Features

Train, review,
adjust, repeat.

Two-tap logging

Log a set in two taps and the rest timer starts itself. Personal records are detected instantly, with a chime. Live Activity on the Lock Screen and a Home Screen widget keep the session in reach.

The body map

An anatomical front and back body, rendered with Skia and painted muscle by muscle. Untrained muscles stay unpainted; the map fills in with colour as you train.

Real strength standards

Five tiers per muscle, Beginner to Master, measured against 14 real strength standards. No XP, no badges, no daily streaks — the tier is earned from your data.

Exercise library

302 exercises, each with a looping form-demo animation and instructions. Search by muscle group or equipment, and open the personal history and stats for any movement.

Analytics

Seven charts — volume, time under training, workouts, workouts per week, bodyweight, muscle balance and e1RM progression — plus a consistency heatmap and lifetime totals.

Social

World and per-country leaderboards, with a plausibility gate so implausible lifts don't count. Add friends and compare head-to-head, painted muscle by muscle on the body map.

Body Map

Every muscle you've trained, in colour.

An anatomical front and back body, rendered with Skia and painted per muscle. Untrained muscles stay unpainted — the map fills in as you train.

Five strength tiers per muscle, Beginner to Master
Rated against 14 real strength standards
Eight city themes, each shipping light and dark

Crank body map — front view, each muscle painted by strength tier

Logging

Log the set. The timer does the rest.

A training log built for the gym floor. Two taps to record a set, and the rest timer starts itself — no fiddling between working sets.

Instant personal record detection, with a PR chime
Templates organised in folders, plus custom exercises
Live Activity on the Lock Screen and a Home Screen widget

Crank workout templates organised in folders

Crank workout tracker with completed sets

Exercise Library

302 exercises, each one demonstrated.

Every movement carries a looping form-demo animation and written instructions, so there's no guessing at setup or range of motion.

Search by muscle group or by equipment
Per-exercise personal history and stats
Add your own movements when the catalog doesn't have them

Crank exercise library — a template's movements with form-demo thumbnails

Analytics

Rated against real strength standards.

Seven charts covering volume, time under training, workouts, workouts per week, bodyweight, muscle balance and e1RM progression.

GitHub-style consistency calendar heatmap
Per-exercise breakdown and personal history
Lifetime totals across your whole history

Crank analytics — consistency heatmap and volume chart

Crank analytics — bodyweight and workouts per week

Social

Who's stronger? Muscle by muscle.

Head-to-head comparison painted straight onto the body map — no other tracker renders a comparison anatomically.

World and per-country leaderboards
A plausibility gate, so implausible lifts don't count
Friends, profiles, and two share cards for sessions and PRs

Crank social — head-to-head comparison painted on the body map

Themes

Eight cities.
Eight kinds of light.

Every theme is included, and the colour carries through every screen — not just the accent.

BaselSwitzerland
Neutral greyscale and one deep azure accent. The quiet default.
IstanbulTürkiye
Red, for the last of the light coming off the Bosphorus.
TehranIran
Orange, the colour of dust held in a late afternoon.
BogotáColombia
Yellow, thin and bright at two and a half thousand metres.
OsloNorway
Emerald, a cold northern green that never quite warms.
ReykjavíkIceland
Blue, drawn from a blue hour that runs most of the day.
OkinawaJapan
Violet, dusk settling over the East China Sea.
SocotraYemen
Pink, the colour under the dragon's blood trees at sunset.