Fast Rhythm: Fasting & Sleep

Fast Rhythm: Fasting & Sleep

Fasting Timer + Sleep Rhythm

2 ratings
2 reviews
Free
In-App Purchases

Details

  • Released
  • Updated
  • March 12, 2026
  • June 1, 2026

Features

Fast Rhythm: Fasting & Sleep screenshot #1 for iPhone
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Fast Rhythm: Fasting & Sleep screenshot #6 for iPhone
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About

This app helps you build consistent daily routines by tracking fasting and sleep patterns. It provides a unified score to monitor your metabolic rhythm and offers insights for sustainable habit building. Focuses on privacy with offline, on-device data storage.

Fasting timer with customizable plans
Sleep rhythm logging and quality rating
Metabolic Rhythm Score for habit feedback
Weekly rhythm reports
Personalized insights and recommendations
Streaks, achievements, and progress tracking
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What's New in Fast Rhythm

1.0.2

June 1, 2026

Updated App Store metadata for Fast Rhythm: Fasting & Sleep, with clearer fasting, sleep rhythm, weekly insights and private on-device use positioning.

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Subscription plans

Fasting Pro Monthly

Get full Pro access with a monthly plan.

$4.991 Month
3 Days trial
How to cancel Fast Rhythm subscription ⁉️

User reviews

Perfect Intermittent Fasting for Daily Health

I’ve tried many intermittent fasting app before,but this app is by far one of the most intuitive and helpful tools for managing my fasting schedule.

Response from developer

Thank you so much for your wonderful feedback! We’re really happy to hear that Fast Rhythm: Fasting & Sleep has been helpful for managing your intermittent fasting routine. Our goal when building this app was to create a simple and intuitive fasting timer that makes intermittent fasting easier to follow every day. Many users told us that other fasting apps felt complicated, so we focused on a clean dashboard, an easy fasting schedule setup, and a reliable fasting tracker that helps users stay consistent. We’re especially glad that you find the app helpful for maintaining your fasting schedule and building healthier daily habits. Intermittent fasting works best when it becomes part of a regular routine, and tools like a clear fasting timer and progress tracking can make that process much easier. In future updates we’re planning to improve the fasting tracker, add more fasting schedule options, and introduce additional tools that connect fasting habits with sleep rhythm and overall wellness. Thank you again for your support and for choosing Fast Rhythm as your intermittent fasting companion. Reviews like yours help us continue improving the app for the entire fasting community.

Best Fasting Timer And Sleep Rhythm!

This is one of the best intermittent fasting apps I’ve found on the App Store.The fasting timer works perfectly,and the dashboard makes it really easy to track fasting properly and build a consistent routine.

Response from developer

Thank you for your amazing review! We’re thrilled to hear that you’re enjoying Fast Rhythm: Fasting & Sleep and that the fasting timer and dashboard are helping you stay on track. When we designed this intermittent fasting app, we wanted to create a fasting timer that is both powerful and extremely easy to use. A good fasting tracker should help users understand their fasting schedule, stay consistent with their fasting routine, and build healthier daily habits over time. We’re especially glad that the dashboard makes it easier for you to track fasting progress and maintain a stable fasting rhythm. Many users tell us that having a clear overview of their fasting schedule makes intermittent fasting much more sustainable in the long term. We are continuously improving the app and planning new features that will further enhance fasting tracking, daily health routines, and the connection between fasting cycles and sleep rhythm. Thank you again for your support and for recommending Fast Rhythm. Your feedback helps us make this fasting app even better for people who want a simple and effective intermittent fasting tracker.

Developer apps

FAQ

What is Fast Rhythm's Metabolic Rhythm Score?

The Metabolic Rhythm Score combines sleep quality, sleep regularity, fasting compliance, and behavior synergy into a single score. It serves as a simple feedback loop for your habits, indicating if your sleep and fasting routines are supporting each other.

Does Fast Rhythm require an account or cloud upload?

No, Fast Rhythm is designed with privacy first, offering offline functionality and on-device data storage. You can start tracking your fasting and sleep without creating an account or uploading any data to the cloud.

What fasting plans does Fast Rhythm support?

Fast Rhythm supports common fasting plans like 12:12, 14:10, 16:8, and 18:6, as well as 20:4. You can also choose a custom rhythm that best fits your weekly schedule.

How does Fast Rhythm help with sleep tracking?

You can log your bedtime and wake time, rate your sleep quality, and review your sleep duration. The app also helps you notice sleep debt and irregular nights, understanding how rest impacts your fasting experience.

What are the subscription options for Fast Rhythm?

Fast Rhythm offers 'Fasting Pro Monthly' for $4.99/month with a 3-day free trial, and 'Fasting Pro Yearly' for $19.99/year with a 3-day free trial.

How often is Fast Rhythm updated?

The latest version, 1.0.2, was released on June 1, 2026. Updates are provided regularly to enhance features and ensure reliability.

What devices is Fast Rhythm available on?

Fast Rhythm is currently supported on iPhone devices.

What is the age rating for Fast Rhythm?

Fast Rhythm has an age rating of 4+, making it suitable for a wide range of users.