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SimFast: Fasting Tracker

Stop guessing and start transforming. Join millions using Korea’s #1 fasting app to automate your schedule, log meals with a single photo, and track scientific body stages like autophagy—all in one sleek, ad-free experience.

Health & Fitness ›

Key Figures

Downloads

671K+

User Rating

4.8/5

Total Ratings

21K+

Publisher

Kim Yunhoo

Smart Tools for Lasting Transformation

Join millions of health optimizers using AI-driven technology and metabolic science to simplify intermittent fasting and achieve sustainable results.

AI-Powered Efficiency

Stop manual logging. Snap a photo of your meal for instant calorie counting and let our AI create the perfect fasting schedule for your lifestyle.

Science-Backed Insights

Track your body's internal progress in real-time, from fat burning to autophagy, with detailed stages that explain the biology of your fast.

FAQ

Frequently Asked Questions

Everything you need to know about SimFast: Fasting Tracker

What is SimFast?

SimFast is Korea's #1 intermittent fasting app designed to help users build healthy habits with scientific and systematic management. It provides tools for tracking fasting, meals, workouts, and more.

Does the SimFast app offer AI features?

Yes, SimFast includes AI features. SimFast AI provides automatic schedule recommendations tailored to your lifestyle and calculates calories by analyzing food photos.

How does SimFast AI recommend fasting schedules?

SimFast AI automatically recommends personalized intermittent fasting schedules. This feature considers your lifestyle to suggest an optimal plan, eliminating the need for manual guesswork.

Can I track calories by taking a photo of my food in SimFast?

Yes, SimFast allows calorie tracking via photos. The app's AI calculates the calories after you snap a picture of your food, enabling smart diet logging and management.

What intermittent fasting methods does SimFast support?

SimFast supports various intermittent fasting methods, including popular ones like 16:8 and 5:2. Users can also utilize unlimited custom fasting options and receive smart alarms.

Does SimFast provide detailed reports and analysis?

Yes, SimFast provides detailed fasting analysis and reports. These include statistics on fasting hours and meal calories, with weekly and monthly progress reports available.

Does SimFast integrate with Apple Health?

Yes, SimFast integrates with Apple Health. The app uses Apple Health to record and sync weight and workout data, providing a comprehensive health overview.

How are payments handled for SimFast subscriptions?

SimFast charges are billed to your Apple ID account upon purchase confirmation. Subscriptions automatically renew unless canceled at least 24 hours before the period ends.

How do I cancel my SimFast subscription?

You can manage and cancel your SimFast subscription through your App Store account settings. Cancellation must occur at least 24 hours before the current subscription period concludes.

Where can I find the privacy policy for SimFast?

The privacy policy for SimFast is available online. You can access the full details at the provided link: https://www.gandanapp.com/privacy.

The following screenshots and description are sourced directly from the app's official store listing and are the property of the app developer.

App Store

Screenshots

SimFast: Fasting Tracker - SimFast app interface displaying an active intermittent fasting timer with progress circle and fat burning status — SimFast app interface displaying an active intermittent fasting timer with progress circle and fat burning status

SimFast: Fasting Tracker - SimFast app analysis screen displaying cumulative fasting time bar charts, a donut chart of user feelings during fasts, and a calorie consumption log. — SimFast app analysis screen displaying cumulative fasting time bar charts, a donut chart of user feelings during fasts, and a calorie consumption log.

SimFast: Fasting Tracker - A screenshot of the SimFast app showing an active intermittent fasting timer at 15 hours and 55 minutes with a circular progress bar at 93 percent. — A screenshot of the SimFast app showing an active intermittent fasting timer at 15 hours and 55 minutes with a circular progress bar at 93 percent.

SimFast: Fasting Tracker - A screenshot of the SimFast app interface showing a 17 hour fasting log with mood tracking options. — A screenshot of the SimFast app interface showing a 17 hour fasting log with mood tracking options.

SimFast: Fasting Tracker - Intermittent fasting schedule customization screen in the SimFast app showing hourly planning and AI recommendations. — Intermittent fasting schedule customization screen in the SimFast app showing hourly planning and AI recommendations.

SimFast: Fasting Tracker - SimFast app screen showing a daily meal summary with calories and macronutrient breakdown for carbs protein fat and sugar — SimFast app screen showing a daily meal summary with calories and macronutrient breakdown for carbs protein fat and sugar

SimFast: Fasting Tracker - SimFast app interface for AI powered meal logging and calorie tracking — SimFast app interface for AI powered meal logging and calorie tracking

SimFast: Fasting Tracker - SimFast app interface showing workout tracking with a calendar and exercise logs for HIIT and walking — SimFast app interface showing workout tracking with a calendar and exercise logs for HIIT and walking

SimFast: Fasting Tracker - SimFast app dashboard displaying weekly and monthly reports for fasting hours, difficulty levels, and calorie intake — SimFast app dashboard displaying weekly and monthly reports for fasting hours, difficulty levels, and calorie intake

SimFast: Fasting Tracker - SimFast app screen showing weight tracking graph and progress history — SimFast app screen showing weight tracking graph and progress history

Description

Want to succeed with intermittent fasting? It's possible with SimFast, Korea's #1 fasting app chosen by millions of dieters! (Developed by Koreans) Instead of just starving yourself, let us help you build healthy habits with scientific and systematic management. Start your smart health journey with 'SimFast', praised by countless users. Why choose 'SimFast'? [NEW] SimFast AI AI Schedule Recommendations: Stop guessing! Our AI automatically recommends the perfect intermittent fasting schedule tailored to your lifestyle. AI Calorie Calculation: Just snap a photo of your food, and the AI calculates the calories to smartly log and manage your diet. The Easiest Intermittent Fasting Timer Supports all fasting methods like 16:8 and 5:2, with smart alarms for your start and end times. (※ Please check your notification settings!) Unlimited Custom Fasting Choosing your fasting times and schedules is completely free. Manage your fasting plan without ads. All-in-One Health Tracking Track your fasting hours, weight changes, meals, workouts, and water intake all in one place. Fasting Analysis & Reports Provides detailed stats on fasting hours and meal calories, with weekly and monthly reports. Convenient Home Widget Instantly check and control your fasting status right from your home screen with our widget. Detailed Fasting Stages Get useful tips and info on what's happening in your body hour-by-hour during a fast. Understanding these changes is key to success. Secure Backup & Restore Protect your valuable data with our easy-to-use backup and restore feature. Visual Progress & Meal Logging Log your meals and visual progress ("eye body") with photos to see your amazing transformation. It's the best motivation to keep going! The Science-Backed Benefits of Intermittent Fasting ▸ Effective Weight Loss: Burn body fat and prevent excess fat storage. ▸ Boosted Metabolism & Autophagy: Enhance your metabolism and improve cellular health. ▸ Improved Blood Sugar Control: Increase insulin sensitivity to naturally manage blood sugar levels. ▸ Promotes Detox & Cell Regeneration: Support your body’s natural detox and cellular repair processes. ▸ Reduces Inflammation: Lower inflammation levels and reduce the risk of chronic diseases. ▸ Enhanced Mental Clarity & Energy: Experience improved brain function and mood. The perfect intermittent fasting app for you if: You're new to intermittent fasting and don't know where to start. You want to stay motivated with a systematic fasting app. You aim for both weight loss and a healthy lifestyle. You've struggled with managing diets and counting calories. The secret to a successful diet is 'consistency'. 'SimFast', the best intermittent fasting app, will help you build healthy habits. Download 'SimFast' now and start your healthy transformation! *** This app integrates with the Apple Health app *** SimFast works with Apple Health to record weight, workout data. ABOUT PAYMENT Upon purchase confirmation, charges will be billed to your Apple ID account. After subscribing, you can manage and cancel your subscriptions in your App Store account settings. If not canceled at least 24 hours before the end of the subscription period, it will automatically renew. For more details, please check the following link. - Terms: https://www.gandanapp.com/service_en - Privacy Policy : https://www.gandanapp.com/privacy