LightYet: Weight & Fat Log
Private Body Progress Diary
Free · In-App Purchases · Designed for iPad. Not verified for macOS.
Tired of weight trackers that demand logins, push ads, and collect your data? LightYet is the pure, minimalist way to track your weight, body composition, and visual transformation. Zero clutter, zero hidden subscriptions. Just open, log, and grow.
FREE FEATURES
Daily Weight & Fat Logging
Record your weight in kg or lb with optional body fat percentage and personal notes. Quick, frictionless, takes under 10 seconds.
Visual Progress Diary (New!)
Numbers aren't everything. Snap a daily photo of your physique and use our side-by-side comparison tool to see the real changes in your body over time.
Smart Goal Prediction Engine (New!)
Based on your unique data trends, our smart algorithm calculates the exact estimated date you'll reach your target weight. Stay motivated with a clear finish line.
Apple Health Sync (New!)
Import weight, body fat, and height with your permission. New LightYet records can be written back only when you enable it.
Smart Trends & Charts
Visualize your progress with beautiful line charts. See 7-day, 30-day, and 90-day views with moving averages to spot real trends.
Calendar View
Browse every past record in a clean calendar layout. Spot your patterns instantly.
BMI Calculator
Supports WHO International, WHO Asia-Pacific, and China Ministry of Health standards, auto-selected based on your profile.
Streak System & Achievements
Build a daily check-in habit and earn badges. From 3-day "First Flame" to 365-day "Full Circle", watch your motivation grow.
Multiple Profiles
Share one device with family? Switch between separate profiles effortlessly. Each person gets their own history and goals.
Nutrition Science Guide
Built-in reference covering fat loss principles, macro ratios, protein intake, meal timing, and more. Science-backed, easy to read.
Daily Motivational Quotes
100 handpicked quotes for inspiration. A fresh message every time you open the app.
Home Screen Widget
Glance at your current weight anytime without opening the app. Small widget included for free.
Supports Multiple Weight Units:
Kilograms and Pounds
LIGHYET PRO
Upgrade once to unlock the full experience. We offer transparent pricing including a Lifetime (Pay-once) option!
Unlimited Progress Photos
Track your visual transformation without limits. Store endless daily body photos securely to build a complete timeline of your journey.
iCloud Sync Across Devices
Your weight records, photos, and profiles sync seamlessly across all your iPhones and iPads via your private iCloud account. Reinstall the app and your history comes right back automatically.
4 Exclusive Pro Widgets
Body Fat Small (2x2) - Current body fat percentage with health classification
Body Fat Medium (4x2) - Body fat with visual spectrum indicator
Dashboard Small (2x2) - Weight, body fat, and streak overview
Dashboard Medium (4x2) - Full summary with weight trend, body fat, log rate, and goal progress
PRIVACY - YOUR SENSITIVE DATA IS YOURS
LightYet is built with absolute privacy first, especially for your progress photos:
All data and photos are stored strictly locally on your device only.
iCloud sync (Pro) uses your own private Apple iCloud container. We never see your data or your pictures.
Zero third-party analytics, advertising SDKs, or trackers.
No account or sign-up required to use the app.
Read our full privacy policy at: https://sunheihei.github.io/lightyet-privacy/lightyet_privacy
DESIGNED FOR EVERYONE
Whether you're just starting a health journey or you've been tracking for years, LightYet meets you where you are. Clean design, thoughtful details, zero distraction.
Start today. Your future self will thank you.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Added weekly and monthly summary reports.
The developer, 依欢 孙, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- 依欢 孙
- Size
- 9.2 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 5 more
- English, French, German, Japanese, Simplified Chinese, Spanish
- Age Classification
4+
- 4+
- In-App Purchases
Yes
- LightYet-Lifetime $79.99
- Yearly $29.99
- Monthly $4.99
- Copyright
- © 2026 LightYet