# REM Sleep Tracker — Cycle Monitor for Watch

> Apple Watch sleep tracker analyzing stages, heart rate, and trends for quality improvement. (iPhone/iPad app by Nicola Eusebi.)

- Source: https://appshunter.io/ios/app/rem-sleep-tracker/id6446677275 (this page in markdown: same URL + `.md`)
- Developer: [Nicola Eusebi](https://appshunter.io/developer/737311863)
- Category: Health & Fitness, Utilities
- Price: Free with in-app purchases
- Rating: 4.20/5 from 49 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 16.0 · 25 MB
- Languages: American English, French (France), German (Germany), Italian, Brazilian Portuguese, European Spanish
- Released: 2023-05-02
- Data updated: 2026-08-16
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/rem-sleep-tracker/id6446677275/reviews.md

## What is REM Sleep Tracker?

Sleep Monitor is the perfect app for people eager to enhance the quality of their nighttime rest. Thanks to an advanced algorithm, Sleep Monitor processes the data gathered by your Apple Watch sensors to provide you with an overall score representing the quality of your sleep. 

This innovative app offers a detailed analysis of the different sleep stages, monitoring light, deep, and REM sleep cycles, and providing information about your heart rate throughout the night. Additionally, Sleep Monitor allows you to track your progress with the "sleep bank" concept, a repository of your rest data that helps you better understand your habits and identify any issues. 

With Sleep Monitor, you can also monitor the weekly trends of various parameters, such as sleep duration, rest quality, and time spent in each sleep stage. This valuable information will enable you to make targeted lifestyle changes to improve your nighttime rest. 

Don't miss the opportunity to transform your Apple Watch into a powerful tool for better sleep and waking up more rejuvenated each day. Sleep Monitor is the ideal app for those seeking an ally in sleep management, with an intuitive design and a rich array of features. 

Download Sleep Monitor today and begin your journey towards more restful and regenerative sleep. Maximize the potential of your Apple Watch and discover how quality rest can improve your daily life! 

HealthKit

Integrated with Apple Health for sleep stages, heart rate, respiratory frequency, age and gender data to calculate sleep quality.

Sleep Monitor Premium

Sleep Monitor offers a Premium version available as an auto-renewable subscription.

Payment will be charged to iTunes Account at confirmation of purchase. Subscriptions automatically renew unless auto-renew is turned off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period at the rate of your selected plan above. 

Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings on the device. Once purchased, refunds will not be provided for any unused portion of the term.

Privacy policy: http://app.sleepscoreapp.com/Home/Privacy
Terms of use: http://app.sleepscoreapp.com/Home/Terms

## Key features

- Sleep quality scoring
- Detailed sleep stage analysis (light, deep, REM)
- Heart rate monitoring
- Weekly trend tracking
- Sleep bank concept for habit analysis
- Apple Health integration

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Sleep Score Premium Yearly | $29.99 | per year |
| Sleep Score Premium Yearly | $9.99 | per year |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/rem-sleep-tracker/id6446677275/reviews.md

### 3/5 — It says for 4+ but it needs a Apple Watch

*2023-06-18*

Please fix but if not the app is great

## Frequently asked questions about REM Sleep Tracker

### What does REM Sleep Tracker do?

REM Sleep Tracker uses your Apple Watch sensor data to calculate a sleep quality score. It provides detailed analysis of your sleep stages, heart rate, and tracks weekly trends to help you understand and improve your rest.

### How accurate is REM Sleep Tracker?

The app uses an advanced algorithm to process data from Apple Watch sensors, including sleep stages, heart rate, and respiratory frequency, integrated with Apple Health for comprehensive analysis.

### What sleep stages does REM Sleep Tracker monitor?

REM Sleep Tracker monitors light sleep, deep sleep, and REM sleep cycles, providing insights into the duration and quality of each stage throughout the night.

### Can I track my sleep progress over time with REM Sleep Tracker?

Yes, the app features a 'sleep bank' concept to store your rest data, allowing you to track weekly trends in sleep duration, rest quality, and time spent in each sleep stage.

### Is REM Sleep Tracker available on Android?

Based on the provided data, REM Sleep Tracker is designed for iPhone and integrates with Apple Watch sensors, suggesting it is not available on Android devices.

### What are the subscription options for REM Sleep Tracker?

REM Sleep Tracker offers a Premium version as an auto-renewable subscription. Plans include 'Sleep Score Premium Yearly' at $9.99 and another at $29.99, which includes a 7-day free trial.

### How do I cancel my REM Sleep Tracker subscription?

Subscriptions can be managed by the user, and auto-renewal can be turned off by going to the device's Account Settings. Refunds are not provided for any unused portion of the subscription term.

### What is the age rating for REM Sleep Tracker?

REM Sleep Tracker has an age rating of 4+, making it suitable for a wide range of users.

## Version history (last 5 releases)

### 1.2.6 — 2026-04-14

bugfixes

### 1.2.5 — 2026-02-27

bugfixes

### 1.2.4 — 2025-09-07

bugfixes

### 1.2.3 — 2025-08-22

bugfixes

### 1.2.2 — 2024-09-25

Bugfixes

## Apps similar to REM Sleep Tracker

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Sleep Cycle - Tracker & Sounds](https://appshunter.io/ios/app/sleep-cycle-tracker-and-sounds/id320606217) | 4.7 (27,889) | Free | Health & Fitness |
| [Sleep Time+ Cycle Alarm Clock](https://appshunter.io/ios/app/sleep-time-plus-cycle-alarm-clock/id498360026) | 4.8 (2,483) | Free | Health & Fitness |
| [Sleep Monitor: Sleep Tracker](https://appshunter.io/ios/app/sleep-monitor-sleep-tracker/id1510325113) | 4.6 (5,204) | Free | Health & Fitness |
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## More apps by Nicola Eusebi

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- [Dog Identifier: Breed Scanner](https://appshunter.io/ios/app/dog-identifier-breed-scanner/id6749545293)

All apps by Nicola Eusebi: https://appshunter.io/developer/737311863

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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 2026-08-16.*