FFMI Calc - Muscle Potential
JARI TOIVIAINEN Health & Fitness iPhoneiPadiPod touch
FFMI Calc - Muscle Potential is a free Health & Fitness app for iPhone and iPad by JARI TOIVIAINEN. Requires iOS 17.0. Updated April 5, 2026.
- Price
- Free
- on the App Store
- Size
- 1 MB
- Age 4+
- Updated
- Apr 5
- 2026 · v1.1
Screenshots
About FFMI Calc - Muscle Potential
Calculate your Fat-Free Mass Index (FFMI) and discover your genetic muscle potential with scientific precision. FFMI Calc uses the normalized FFMI formula with gender adjustment and Casey Butt's 4th edition model to estimate your maximum lean mass based on your bone structure. Features: • FFMI & normalized FFMI calculation with gender correction • Casey Butt genetic maximum potential estimation • Body part comparison (chest, arms, legs, etc.) vs. genetic limits • Detailed PDF report with methodology • History tracking with PDF export • Supports metric (kg/cm) and imperial (lbs/in) units • Available in English, Finnish, and Spanish All calculations run locally on your device. No account required. No data collected. https://www.pumprex.com/ffmi-terms-of-service/ https://www.pumprex.com/ffmi-privacy-policy/
What’s new
Version 1.1 · Updated April 5, 2026
Accessibility • VoiceOver support for the FFMI gauge – screen reader now announces the value and classification • Dynamic Type – input fields and tables scale with the system text size • Reduce Motion – animations respect the system motion setting across all views Improvements • Improved date formatting across all languages Fixes • Minor UI fixes and stability improvements
App privacy
The developer, JARI TOIVIAINEN, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
Alternatives to FFMI Calc - Muscle Potential
Looking for apps like FFMI Calc - Muscle Potential? Here are 6 similar apps on the App Store.
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FFMI Calc
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IronSum: Lifting & Nutrition
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TrackMe - Weight and body
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| FFMI Calc - Muscle Potential | – | Free | April 5, 2026 | |
| FFMI Calc | – | Free | Oct 16, 2026 | Compare |
| FFMI | – | Free | Dec 14, 2025 | Compare |
| FFMI Analyzer | – | Free | Oct 15, 2026 | Compare |
| IronSum: Lifting & Nutrition | – | Free | Feb 6, 2026 | Compare |
| ASCEND - Reach Your Potential | – | Free | Mar 2, 2026 | Compare |
| TrackMe - Weight and body | – | Free | Nov 5, 2025 | Compare |