# Fast Rhythm: Fasting & Sleep — Fasting Timer + Sleep Rhythm

> Fasting timer and sleep rhythm tracker for metabolic health and consistent routines. (iPhone/iPad app by 家宝 戴.)

- Source: https://appshunter.io/ios/app/fast-rhythm-fasting-and-sleep/id6760157764 (this page in markdown: same URL + `.md`)
- Developer: [家宝 戴](https://appshunter.io/developer/1826395838)
- Category: Health & Fitness
- Price: Free with in-app purchases
- Rating: 5.00/5 from 2 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 18.6 · 1 MB
- Languages: American English, Arabic, French (France), German (Germany), Hindi, Indonesian, Italian, Japanese, Korean, European Portuguese and 4 more
- Released: 2026-03-12
- Data updated: 2026-07-09
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/fast-rhythm-fasting-and-sleep/id6760157764/reviews.md

## What is Fast Rhythm?

Fast Rhythm: Fasting & Sleep is a calm fasting timer and sleep rhythm tracker for people who want consistency without accounts, noise, or complicated health dashboards.

The idea is simple: fasting is easier to understand when you also pay attention to sleep. Fast Rhythm brings Fasting + Sleep + Regularity into one Metabolic Rhythm Score, so you can see whether your daily routine is moving in a steadier direction. It is built for ordinary routines: a 16:8 fast after dinner, a 14:10 plan during busy weeks, a longer fast when you feel ready, and a sleep log that helps you notice when rest is supporting or hurting your rhythm.

Core privacy promises are built into the product story: Offline, No Login, Privacy First, On Device, No Cloud Upload. You can open the app and start tracking without creating an account. Your fasting sessions, sleep records, hunger notes, quality ratings, streaks, achievements and settings are designed to stay on your iPhone.

What you can track:

* Fasting timer
Start a fast, follow elapsed time, see how much time remains, and stop when you are ready. Use common plans such as 12:12, 14:10, 16:8, 18:6 and 20:4, or choose a custom rhythm that fits your week. The timer helps you separate the fasting window from the eating window without turning every meal into a spreadsheet.

* Sleep rhythm
Log bedtime and wake time, rate sleep quality, and review sleep duration. Fast Rhythm also helps you notice sleep debt and irregular nights, because a late night often changes how a fast feels the next day. The sleep view is practical: record, wake up, rate, and move on.

* Metabolic Rhythm Score
The dashboard combines sleep quality, sleep regularity, fasting compliance and behavior synergy into one score. It is not a diagnosis and it is not medical advice. It is a simple feedback loop for habits: did you sleep enough, did you keep a reasonable rhythm, did you complete your fast, and did fasting and sleep support each other?

* Weekly rhythm report
Review a 7-day report with average sleep, average fasting time, completed fasts, daily scores, best day, areas that need attention and key factors for the week. The report is useful when you do not want to judge a routine from one good or bad day.

* Insights and recommendations
See the score breakdown and practical suggestions, such as improving sleep duration, reducing sleep debt, keeping a steady bedtime, choosing a fasting plan that matches your energy, or protecting recovery after a poor night. The goal is sustainable rhythm, not intensity for its own sake.

* Streaks, profile and achievements
Track total fasts, fasting streak, average fast duration, sleep streak, average sleep, sleep quality score, and achievements such as First Fast, 7-Day Streak, 16-Hour Club, Sleep Week and Rhythm Master. These milestones are small signals that your routine is becoming more consistent.

Privacy matters because fasting and sleep can reveal personal routines, health goals, meal timing, rest habits and lifestyle patterns. Fast Rhythm is designed to keep that information local.

Offline: core tracking, history, dashboard, reports, insights and settings are designed for use without a required online account.
No Login: no registration, username, password or social sign-in is required to start.
Privacy First: the app focuses on your daily routine, not building a cloud profile around your body clock.
On Device: fasting data, sleep data, scores, streaks, achievements and preferences are stored locally on your iPhone.
No Cloud Upload: Fast Rhythm does not upload your fasting and sleep history to its own cloud.

Use Fast Rhythm for lightweight fasting, sleep logs, weekly rhythm awareness and private on-device tracking. It supports habits, not medical treatment; ask a qualified health professional if fasting may be unsafe for you.

Privacy Policy
https://5gotogo.github.io/Fasting-privacy/privacy-policy.html

Terms of Use
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- 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

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Fasting Pro Monthly | $4.99 | per month |
| Fasting Pro Yearly | $19.99 | per year |


## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/fast-rhythm-fasting-and-sleep/id6760157764/reviews.md

### 5/5 — Perfect Intermittent Fasting for Daily Health

*2026-03-14*

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.

**Developer response:** 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.

### 5/5 — Best Fasting Timer And Sleep Rhythm!

*2026-03-14*

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.

**Developer response:** 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.

## Frequently asked questions about Fast Rhythm

### 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.

## Version history (last 3 releases)

### 1.0.2 — 2026-06-01

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

### 1.0.1 — 2026-03-20

• Introduced Fast Rhythm Pro subscription with full feature access
• Added 3-day free trial for new users
• Improved fasting timer stability and data tracking
• Optimized sleep rhythm analysis performance
• Fixed minor UI issues and stability bugs

### 1.0 — 2026-03-13

No release notes.

## More apps by 家宝 戴

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- [SnapLabel - Photo Text Label](https://appshunter.io/ios/app/snaplabel-photo-text-label/id6751947372)

All apps by 家宝 戴: https://appshunter.io/developer/1826395838

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-09.*