Log workouts from 873 exercises with demo images and watch your training paint a 24-region body map — built from your logged activity and your own soreness reports. Updated August 2026.
BodyDex on iPhone and Android logs strength and cardio workouts from a built-in library of 873 exercises with demonstration images, then draws your training onto a body figure with 24 tappable muscle regions. The map has two inputs — the workouts you log and the soreness you report — and it never claims to measure your physiology. Workouts live in the same app as your food log, macros, weight, and medication tracking, with everything stored on-device. Quick logging and cardio are on the free tier; the exercise Browse library, live workout builder, auto-routines, and the muscle map are part of Premium (7-day trial).
A single 'fatigue score' hides everything useful. BodyDex draws your training onto a body figure with 24 tappable muscle regions across front and back views, so chest day and leg day light up different parts of the map.
873 exercises with bundled demonstration images, searchable and filterable by category. Each exercise is tagged with the primary and secondary muscles it works — those tags are what feed the map.
The map is built from exactly two things: the workouts you log and the soreness you report. BodyDex has no sensors and does not measure your muscles — the map is a picture of your log, nothing more.
Sets, reps, weight, set type, and optional RPE per set — plus supersets, cardio sets, and automatic personal-record detection when a logged set beats your history.
Every completed workout lands in your workout history, and each exercise keeps its own set history — so logging a repeat exercise can prefill what you did last time.
Workouts live next to your food log, macros, weight, and medication tracking. Each workout gets a calorie-burn estimate, and you choose what percentage of it (including none) counts toward your daily calorie target.
Quick-log a single exercise, run a live workout in the builder, or log cardio. Sets record reps, weight, set type, and optional RPE.
Each exercise in the library is tagged with primary and secondary muscles. When you complete sets, that logged work is attributed to the matching regions.
Regions you trained recently render hot and fade back toward neutral as the logged work ages. More sets and harder RPE ratings produce a stronger signal on the map.
A bottom sheet shows that region's current state, when you last trained it, and its set count over the past 7 days.
Tell the app how the region feels — Fresh, Tight, Sore, or Very Sore. Your report becomes that region's displayed state until it expires or you train the region again.
Every color on the map traces back to something you did: a set you logged in BodyDex, a workout synced from Apple Health or Health Connect, or a soreness report you tapped in yourself. Recent logged work shows hot; older logged work fades.
BodyDex has no sensors and takes no biometric readings. The map does not measure muscle recovery, readiness, or anything else about your physiology — and it isn't training advice. It shows what you logged, when, and how you said you feel.
When you tell BodyDex a region feels Fresh, Tight, Sore, or Very Sore, your report becomes that region's displayed state — not a small adjustment on top of a formula. It stays in effect until it expires or you train that region again.
Each workout gets a calorie-burn estimate, and you decide what percentage of it — from all of it to none of it — counts against your daily calorie target.
Food, macros, weight, workouts, and medication or supplement schedules all live in the same app, so your training history sits right next to what you ate that week.
Workout sessions, sets, personal records, and soreness reports are stored in a local SQLite database on your phone — not in a BodyDex cloud account.
BodyDex draws 24 tappable regions across the front and back views of the body figure (with male and female figure options). The front view shows 14 regions (neck, traps, chest, shoulders, biceps, forearm flexors, forearm extensors, abs, lower abs, obliques, quads, adductors, abductors, calves) and the back view shows 10 (traps, rear delts, triceps, forearm flexors, forearm extensors, lats, lower back, glutes, hamstrings, calves).
No. The map has exactly two inputs: the workouts you log and the soreness you report. There are no sensors, no HRV, and no biometric measurements — BodyDex does not measure what your muscles are physiologically ready for, and the map is not training or medical advice. If you don't log a workout, the map doesn't know it happened.
Partly. Quick-logging an exercise and cardio logging are on the free tier, and completed workouts keep their history. The 873-exercise Browse library, the live workout builder, auto-generated routines, and the muscle map are part of BodyDex Premium ($9.99/mo or $79.99/yr, with a 7-day trial).
Yes. Workouts synced in from Apple Health or Health Connect — watch-logged running, cycling, rowing, and so on — contribute to the map alongside the sets you log in BodyDex.
Yes. All 873 exercises ship with demo images bundled inside the app, based on an open, public-domain exercise dataset — no download needed to view them.
On your device, in a local SQLite database. There is no centralized BodyDex database of your workouts. On iOS, iCloud backup (if you use it) is at the OS level and follows Apple's standard encryption posture; on Android, BodyDex opts out of OS backups entirely, so your log never leaves the device.
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Log workouts from 873 exercises on iPhone or Android and see your training on a 24-region muscle map.
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