
Shaper: Muscle Map
See which muscles you trained
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About
Your Apple Watch counts minutes and calories. Shaper answers a different question: which muscles did those workouts actually train, and what did you skip?
Shaper reads your workouts from Apple Health and maps them onto 15 muscle groups, front and back. See your week at a glance, then fill the gaps.
A BODY MAP OF YOUR WEEK
Each muscle group is trained, light or missed, including upper abs, lower abs and obliques. Switch between today, the last 3 days and the last 7 days. Tap any muscle to see which workouts worked it.
EVERY WORKOUT YOUR WATCH RECORDS
Running, cycling, rowing, elliptical, swimming, yoga, HIIT, dance, racket and team sports, and more, each shown with its Apple name. Strength training? Tell Shaper what you trained (chest, shoulders, legs, core) and the map shows exactly those muscles.
EFFORT COUNTS
A hard session counts for more than an easy one, based on your heart rate and energy. Short beginner sessions still light up the muscles they worked.
FILL THE GAPS
The Plan tab suggests your next sessions and how long each should be, based on what you missed. Tap once to start the workout on your Apple Watch, and see it under Done today.
YOUR BODY SHAPE
From your weight, height and body fat (from a smart scale, or entered by hand) Shaper estimates your body type and gives a simple three-step plan toward balanced, with weekly goals it tracks for you. These are estimates, not a diagnosis.
ON YOUR WRIST
The Shaper Apple Watch app shows your body map and starts suggested workouts.
PRIVATE BY DESIGN
Shaper has no servers. Your health data stays on your iPhone and Apple Watch. No ads, no analytics, no tracking, and nothing sold. "Sign out and erase data" removes everything the app stored.
Shaper is a fitness guide, not a medical device. No exercise can remove fat from one spot; Shaper shows where fat is estimated to sit and suggests balanced training. Check with your doctor before changing your diet or starting a new exercise plan.
Requires iPhone with iOS 15 or later. Apple Watch with watchOS 10 or later recommended.
Questions: privacy@xctra.org
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What's New in Shaper
1.0.0
October 3, 2026




