It says for 4+ but it needs a Apple Watch
Please fix but if not the app is great
Free
In-App Purchases
About
This app analyzes Apple Watch sensor data to provide a sleep quality score. It offers detailed insights into sleep stages, heart rate, and weekly trends, helping users understand and improve their rest habits.
✓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
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What's New in REM Sleep Tracker
1.2.6
April 14, 2026
bugfixes
Subscription plans
Sleep Score Premium Yearly
Unlock all the features.
$29.991 Year
7 Days trialUser reviews
Developer apps
FAQ
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.
