Comparison

SleepTrack vs REM Sleep Tracker

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

SleepTrack

Easily log your sleep duration and wake times. Gain insights into your sleeping habits with detailed reviews and averages. The app offers guidance to help identify good or bad sleep patterns and integrates with Apple Watch and HealthKit.

Highlights
  • Track time in bed
  • Log go-to-bed and wake-up times
  • Review sleep duration
  • Trace sleeping habits
  • Detect good/bad sleep
  • Review sleep averages
  • Apple Watch integration
Features
Read full description

Feeling sleepy again? Would you like to take your sleep time under control? Or you are just curious? Introducing - SleepTrack. This app will allow you to track how much time you spend in bed, provide an overview of your "go to bed" times and time when you awake. Tap Sleep before going to bed - tap Awake when you woke up and this is it. - Review your sleep duration - Trace your sleeping habits - Guides to help you detect good or bad sleep - Review your sleep Averages to determine your next goals - Handy notification center widget - SleepTrack is also on Apple Watch for even better control - Sync your data with Health app using Health Kit integration and sync *** Please note that currently developers are not able to use sensors in Apple Watch so app currently will help you track your asleep time.

About

REM Sleep Tracker

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.

Highlights
  • 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
Features
Read full description

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

Screenshots

SleepTrack3 screens
REM Sleep Tracker4 screens

Verdict

The call

The clearest difference is review sentiment: SleepTrack at 38% against REM Sleep Tracker's 0%. SleepTrack also leads on in-app purchases (none vs 2) and device support (3 vs 1). REM Sleep Tracker's advantage is update cadence (every 2 weeks vs monthly) and rating (4.2 vs 4.0). On price and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. REM Sleep Tracker sells 2 in-app purchases, starting at $9.99 per year. SleepTrack asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

REM Sleep Tracker holds the better App Store score, 4.2 against 4.0. Both are backed by a comparable volume of ratings — 16 and 49 respectively. Written reviews complicate that: 38% of SleepTrack's written reviews are positive against 0% of REM Sleep Tracker's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

SleepTrack ships an update monthly, REM Sleep Tracker every 2 weeks. Both last shipped on October 24, 2026.

Scorecard8 real differences · 2 level
SleepTrack versus REM Sleep Tracker: the parameters behind the verdict, then further details
ParameterSleepTrackREM Sleep Tracker
PriceFreeFree
Rating4.0 (16 ratings)4.2 (49 ratings) — better
Positive reviews37.7% of reviews — better0.0% of reviews
Number of ratings1649 — better
Update frequencyMonthlyEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.0 — better16.0
Further details — not scored
Size1 MB25 MB
Age rating4+4+
Developera3teamNicola Eusebi

Customer experience

SleepTrack

All ratings15 ratings
Positive73.3%
Neutral6.7%
Negative20.0%
Written reviews77 reviews
Positive37.7%
Neutral10.4%
Negative51.9%

REM Sleep Tracker

All ratings49 ratings
Positive79.6%
Neutral6.1%
Negative14.3%
Written reviews1 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

Bugs and requests

SleepTrack

Reported bugs

10 issues
  • App not updated for newer iOS/watchOS versions
  • Data not transferred to new phone
  • Cannot see 'awake' button in the morning
  • Sleep not recorded if less than 15 minutes
  • App crashes or doesn't work
Show 5 more
  • No data recorded
  • Watch app doesn't work or is useless
  • Sleep timer can be accidentally deactivated
  • Time zone issues when traveling
  • Sleep data is confusing

Requested features

14 requests
  • Option to change time format to AM/PM
  • Ability to add notes (e.g., how felt next day)
  • Option to record short naps
  • Export data to CSV
  • Sleep reminder
Show 9 more
  • Weekly/monthly graphs
  • Icon on the badge for forgotten stops
  • Time Zone adaptation for travel
  • Option to edit clock for easier reading
  • Add a number for cumulative sleep over 24 hours
  • Change log entry section color
  • Change color when entering sleep mode
  • Auto-sync with Health app
  • Make minimum sleep duration optional

REM Sleep Tracker

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

SleepTrack

No in-app purchases

2 purchases

REM Sleep Tracker

Subscriptions2
  • Sleep Score Premium Yearly$9.991 Year
  • Sleep Score Premium Yearly7 Days trial$29.991 Year

Questions

Is SleepTrack free?
SleepTrack is free to download, with no in-app purchases.
Is REM Sleep Tracker free?
REM Sleep Tracker is free to download, with in-app purchases available.
Which has better reviews, SleepTrack or REM Sleep Tracker?
REM Sleep Tracker is rated higher. SleepTrack averages 4.0 out of 5 from 16 ratings, while REM Sleep Tracker averages 4.2 from 49 ratings.
Do SleepTrack or REM Sleep Tracker have ads?
Neither SleepTrack nor REM Sleep Tracker shows ads.
Which is updated more often, SleepTrack or REM Sleep Tracker?
SleepTrack ships an update monthly, and REM Sleep Tracker every 2 weeks. Most recently, SleepTrack was updated on October 24, 2026 and REM Sleep Tracker on October 24, 2026.

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