About this app
Accurate body fat analysis in seconds. Enter your caliper measurements, choose your formula, and get instant results — trusted by fitness professionals and personal users worldwide. PROFESSIONAL-GRADE FORMULAS Choose from scientifically validated body density formulas — Durnin/Womersley (4 sites), Jackson/Pollock (3 sites), and Jackson/Pollock (7 sites) — combined with Siri, Brozek, or Behnke body fat equations. Each formula is optimized for different populations, giving you the flexibility to match the right method to each client. TWO MODES, ONE APP - Professional Mode: Manage multiple patients, track their progress, and share results. Ideal for nutritionists, personal trainers, and healthcare providers. - Individual Mode: A streamlined experience focused on tracking your own body composition journey. COMPLETE PATIENT MANAGEMENT - Create detailed patient profiles with custom fields - Save unlimited measurements with full history - View evolution charts for body fat, weight, BMI, and lean mass - Photo gallery with before/after comparison - Share visual progress summaries via WhatsApp, email, or any app BUILT-IN MEASUREMENT GUIDE Not sure where to measure? Each skinfold site includes step-by-step instructions, anatomical descriptions, and practical tips to ensure accurate readings every time. BODY FAT RANGES TABLE Compare results against age and gender-specific body fat ranges — from competition level to obesity — so you always know where you stand. ADDITIONAL FEATURES - BMI and Lean Mass calculations included - Customizable calculator display and formula settings - Export & import data for easy backup and device migration - Works 100% offline — no internet required - Dark and light theme - Available in English, Spanish, Portuguese, and Italian Free to download. Optional Premium subscription unlocks unlimited patients, full measurement history, evolution charts, photo gallery, data export, and an ad-free experience.
Latest release
What’s New
Plixi 3.0.5 What's new: - Faster startup with quicker language and data loading - Sticky letter headers in the patient list for easier browsing - Charts and translations load on demand for a smoother experience Thank you for using Plixi!
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 26, 2026 · 8:52 PM Free