Project showcase
Body Composition Tracker
Body Composition Tracker helps you measure body fat and lean mass from caliper readings, track progress over time, and keep all data local — available as a mobile app and web app.
Track body fat percentage and lean mass with professional caliper methods including Jackson/Pollock and Durnin/Womersley. Body Composition Tracker works as an Android app and a web app at body-composition-tracker.com, with progress charts, encrypted backups, and German/English UI. All measurement data stays on your device.
Built with
Key Features
- Caliper methods: Jackson/Pollock 3- and 7-site, Durnin/Womersley 4-site, Faulkner 4-site, plus manual entry
- Progress charts with weight, body fat, lean mass, and optional goals
- Encrypted local backups, CSV export, and optional progress photos
- German and English UI; measurement data stays on your device
- Mobile app with Expo/React Native; web app with React, TypeScript, Vite, and Recharts
Frequently Asked Questions
- Which caliper methods does Body Composition Tracker support?
- The app supports Jackson/Pollock 3-site and 7-site, Durnin/Womersley 4-site, Faulkner 4-site, and manual body fat entry.
- Is there a web version of Body Composition Tracker?
- Yes. In addition to the Android app on Google Play, you can use the web app at body-composition-tracker.com with the same local-first approach.
- Where is my body composition data stored?
- All measurements stay on your device. You can create encrypted local backups or export CSV files — no account required.