Track Your Health Journey with Fitdays App
Experience professional body composition analysis with industry-leading accuracy. Trusted by 3+ million users worldwide, Fitdays App combines 30+ years of expertise with modern technology to help you achieve your wellness goals.
Trusted by Millions Worldwide
Join our growing community of health-conscious users achieving their wellness goals with Fitdays
Active Users Worldwide
Body Composition Metrics
Years Industry Experience
Family Members Supported
Languages Supported
Free Forever
Our Mission
We believe everyone deserves access to professional-grade health tracking. Our mission is to make comprehensive body composition analysis accessible, accurate, and easy to use for families worldwide.
Professional Accuracy
±0.05kg/±0.1lb precision with BIA technology backed by 30+ years of weighing industry expertise
Family-Focused
Support up to 24 family members with automatic recognition and privacy protection for everyone
Simple & Free
Easy-to-use interface with no subscription fees. Download once, use forever with all features included
Everything You Need for Health Tracking
Fitdays App combines cutting-edge technology with user-friendly design to give you comprehensive insights into your body composition and health trends.
Fast 20-Second Analysis
Get comprehensive body composition analysis in just 20 seconds. Step on your smart scale and receive instant measurements of 17 different body metrics including weight, BMI, body fat, muscle mass, and more.
Family Health Tracking
Monitor health for up to 24 family members with automatic user recognition. Each family member gets personalized tracking, trend analysis, and health insights tailored to their unique profile.
Trend Visualization & Charts
Visualize your health journey with beautiful, interactive charts. Track changes over time, identify patterns, and celebrate your progress with detailed graphs for every body metric.
Girth Measurement Tracking
Beyond just weight - track body measurements like waist, chest, arms, and legs. Perfect for fitness enthusiasts who want to see the complete picture of their body transformation.
15 Custom Color Themes
Personalize your experience with 15 beautiful color themes. Choose from vibrant gradients to minimalist designs, making health tracking visually enjoyable and uniquely yours.
Medical-Grade Accuracy
Trust in professional-grade accuracy backed by 30+ years of industry experience. Our algorithms use BIA (Bioelectrical Impedance Analysis) technology trusted by healthcare professionals worldwide.
Advanced Technology
Fitdays App uses cutting-edge Bioelectrical Impedance Analysis (BIA) technology combined with smart algorithms to provide you with 17 comprehensive body composition metrics in just 20 seconds.
BIA Technology
Bioelectrical Impedance Analysis measures your body composition by sending safe, low-level electrical signals through your body to calculate fat, muscle, bone mass, and more
Smart Algorithms
Advanced algorithms validated by millions of users analyze your measurements to calculate body fat percentage, visceral fat, body age, and 14+ other health metrics
Bluetooth 5.0 Connectivity
Fast and reliable Bluetooth 5.0 BLE connection ensures seamless data sync with your smartphone. Measurements appear instantly in the app
Health Platform Integration
Seamlessly sync your data with Apple Health, Google Fit, Fitbit, and Samsung Health for a complete view of your wellness journey
Sync with Your Favorite Apps
Fitdays integrates with the health platforms you already use, keeping all your wellness data in one place.
Apple Health
Automatically sync all your body composition data with Apple Health app for a unified health dashboard.
Google Fit
Seamlessly integrate with Google Fit to track your fitness goals and body composition changes together.
Fitbit
Connect with Fitbit to combine activity tracking with detailed body composition insights.
Samsung Health
Sync your measurements with Samsung Health for comprehensive wellness monitoring on Galaxy devices.
Apple Watch
View your latest body composition metrics directly on your Apple Watch with our companion watchOS app.
Automatic sync with Apple Health, Google Fit, Fitbit, Samsung Health, and Apple Watch
Loved by 3 Million Users
Real Reviews from Real Users
Sarah Johnson
App Store ★★★★★"Best body composition app I've used! The accuracy is impressive and the family sharing feature is perfect for tracking my kids' growth. The charts make it easy to see progress over time."
Michael Chen
Google Play ★★★★★"As a personal trainer, I recommend Fitdays to all my clients. The 17 body metrics give such detailed insights and the Apple Health sync is seamless. Worth every penny - oh wait, it's FREE!"
Emily Rodriguez
App Store ★★★★★"Simple, elegant, and accurate. I love how I can track not just weight but body fat, muscle mass, and even bone density. The girth measurement feature is a nice bonus for tracking fitness progress."
David Kim
Google Play ★★★★★"Perfect for the whole family! We have 5 users and it recognizes each of us automatically. The color themes are beautiful and make health tracking actually enjoyable."
Jessica Martinez
App Store ★★★★★"The integration with Apple Watch and Health app is flawless. I can check my latest measurements right from my wrist. The data visualization is top-notch too."
Robert Thompson
Google Play ★★★★★"Lost 30 pounds with Fitdays! The trend charts kept me motivated and the detailed metrics helped me understand that I was losing fat, not muscle. This app changed my life."
Sarah Johnson
App Store ★★★★★"Best body composition app I've used! The accuracy is impressive and the family sharing feature is perfect for tracking my kids' growth. The charts make it easy to see progress over time."
Michael Chen
Google Play ★★★★★"As a personal trainer, I recommend Fitdays to all my clients. The 17 body metrics give such detailed insights and the Apple Health sync is seamless. Worth every penny - oh wait, it's FREE!"
Emily Rodriguez
App Store ★★★★★"Simple, elegant, and accurate. I love how I can track not just weight but body fat, muscle mass, and even bone density. The girth measurement feature is a nice bonus for tracking fitness progress."
David Kim
Google Play ★★★★★"Perfect for the whole family! We have 5 users and it recognizes each of us automatically. The color themes are beautiful and make health tracking actually enjoyable."
Jessica Martinez
App Store ★★★★★"The integration with Apple Watch and Health app is flawless. I can check my latest measurements right from my wrist. The data visualization is top-notch too."
Robert Thompson
Google Play ★★★★★"Lost 30 pounds with Fitdays! The trend charts kept me motivated and the detailed metrics helped me understand that I was losing fat, not muscle. This app changed my life."
Amanda Wilson
App Store ★★★★★"The automatic user recognition is amazing! No more logging in or switching accounts. Everyone in my family just steps on the scale and their data is automatically saved to their profile."
James Anderson
Google Play ★★★★"Great app with tons of features. The body composition analysis is detailed and the trends are helpful. Would give 5 stars if it had more workout integration features."
Lisa Brown
App Store ★★★★★"I've tried many fitness apps but Fitdays stands out. The visceral fat tracking helped me understand my health risks better. My doctor was impressed with how detailed my records are!"
Kevin Lee
Google Play ★★★★★"Sync with Google Fit works perfectly. I appreciate how all my health data stays in one place. The metabolic age feature motivated me to improve my fitness level."
Maria Garcia
App Store ★★★★"Very helpful for tracking my fitness journey. The body water percentage and protein tracking are unique features I haven't seen elsewhere. Easy to use interface."
Daniel White
Google Play ★★★★★"The privacy features are excellent. Face ID lock gives me peace of mind, and I love that my data is encrypted. Free app with no ads - what more could you ask for?"
Amanda Wilson
App Store ★★★★★"The automatic user recognition is amazing! No more logging in or switching accounts. Everyone in my family just steps on the scale and their data is automatically saved to their profile."
James Anderson
Google Play ★★★★"Great app with tons of features. The body composition analysis is detailed and the trends are helpful. Would give 5 stars if it had more workout integration features."
Lisa Brown
App Store ★★★★★"I've tried many fitness apps but Fitdays stands out. The visceral fat tracking helped me understand my health risks better. My doctor was impressed with how detailed my records are!"
Kevin Lee
Google Play ★★★★★"Sync with Google Fit works perfectly. I appreciate how all my health data stays in one place. The metabolic age feature motivated me to improve my fitness level."
Maria Garcia
App Store ★★★★"Very helpful for tracking my fitness journey. The body water percentage and protein tracking are unique features I haven't seen elsewhere. Easy to use interface."
Daniel White
Google Play ★★★★★"The privacy features are excellent. Face ID lock gives me peace of mind, and I love that my data is encrypted. Free app with no ads - what more could you ask for?"
Rachel Taylor
App Store ★★★★★"Tracking my pregnancy weight has been so much easier with Fitdays. The historical charts show my progress clearly and the basal metabolism tracking helps me understand my changing needs."
Christopher Moore
Google Play ★★★★"Solid app with accurate measurements. The bone mass and skeletal muscle data helped me adjust my nutrition plan. Would be perfect with a meal planning feature added."
Jennifer Harris
App Store ★★★★★"As someone managing PCOS, tracking body composition is crucial. Fitdays gives me the detailed metrics I need to monitor my health. The export feature is great for sharing with my doctor."
Andrew Jackson
Google Play ★★★★★"Bluetooth sync is instant and reliable. No complicated setup - just step on the scale and boom, everything updates. The subcutaneous fat tracking is especially useful for bodybuilding."
Nicole Martin
App Store ★★★★★"The multilingual support is fantastic! My parents don't speak English well, but they can use the app in their native language. Truly a global health companion."
William Davis
Google Play ★★★★★"Been using this for 2 years now. The long-term trend analysis is invaluable. I can see seasonal patterns in my weight and adjust my routine accordingly. Highly recommended!"
Rachel Taylor
App Store ★★★★★"Tracking my pregnancy weight has been so much easier with Fitdays. The historical charts show my progress clearly and the basal metabolism tracking helps me understand my changing needs."
Christopher Moore
Google Play ★★★★"Solid app with accurate measurements. The bone mass and skeletal muscle data helped me adjust my nutrition plan. Would be perfect with a meal planning feature added."
Jennifer Harris
App Store ★★★★★"As someone managing PCOS, tracking body composition is crucial. Fitdays gives me the detailed metrics I need to monitor my health. The export feature is great for sharing with my doctor."
Andrew Jackson
Google Play ★★★★★"Bluetooth sync is instant and reliable. No complicated setup - just step on the scale and boom, everything updates. The subcutaneous fat tracking is especially useful for bodybuilding."
Nicole Martin
App Store ★★★★★"The multilingual support is fantastic! My parents don't speak English well, but they can use the app in their native language. Truly a global health companion."
William Davis
Google Play ★★★★★"Been using this for 2 years now. The long-term trend analysis is invaluable. I can see seasonal patterns in my weight and adjust my routine accordingly. Highly recommended!"
Start Your Health Journey Today
Join 3 million users worldwide who trust Fitdays for accurate body composition tracking. Download now and get instant access to all features - completely free.