Comparison

Sleep Tracker, Recorder 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

Sleep Tracker, Recorder

This app helps you fall asleep faster with soothing soundscapes and meditations. It also tracks your sleep quality, records snoring, and features a smart alarm to wake you gently. Analyze your sleep patterns to improve rest and daytime focus.

Highlights
  • White noise and sleep meditations
  • Soundscapes for focus and relaxation
  • Snoring and sleep disturbance recording
  • Offline sleep analysis
  • Smart alarm for gentle wake-ups
  • Sleep quality monitoring
Features
Read full description

After a long, hectic day, you can’t wait to end your day and go to bed. Everything seems to be perfect: your bedding is soft and cozy, your bedroom is pitch black, the temperature is just right, except...you keep tossing and turning. Your disturbed sleep may be due to recurring noises from outside in your neighborhood, or inside, the annoying snores or murmurs from your sleeping partner, the slight tinnitus that comes with age, or the haunting thoughts in your mind. You miss the days when you could fall into slumber without even realizing it. Can‘t fall asleep? Sleep Tracker, Recorder is here to help. With the delicately composed sleep aids, you’re sure to drift off with ease-white noises to help you cancel out some unwanted background noise, sleep meditations were created carefully to bring peace of mind and dissipate the incessant thoughts bothering you. Sweet dreams have returned. On a sultry afternoon, you’re stuck in the office. Keyboards are clicking, people are chatting in the open space or just beside you, the director is yelling on the phone. In the background, you can notice the sounds coming from the water dispenser, and computer fans running. In your peripheral vision, you see strip lights flickering occasionally. It seems nearly impossible to concentrate. Can’t focus? Sleep Tracker, Recorder is here to help. With a selection of soothing music and soundscapes, you may escape from the real world and transport yourself into another world, where you can easily achieve a calm state of mind. You’ll suddenly notice yourself fully engaged in your current tasks and at maximum productivity. You wake up in the morning, feeling as if no amount of coffee could keep you conscious. The alarm rattles your brain, you feel the ringing jabbing at your heart. You always wonder why you should have slept enough, but always feel weary and sleepy in the daytime, especially when your alarm urges you to leave your bed you feel most uncomfortable. Cannot sleep well and feeling hard to rise? Sleep Tracker, Recorder is here to help. With the advanced built-in sound recognition system, Sleep Tracker, Recorder can analyze your sleep offline with merely your iPhone, and the smart alarm can wake you up without causing discomfort. The moment you open your eyes, you’ll be able to know the quality of your sleep. You can review why your sleep was unsatisfactory and monitor its daily and weekly changes. You may also get warned about possible disorders by your sleep recordings, such as sleep apnea or chronic asthma. Sleep Tracker, Recorder, featuring its various high-quality sleep aids and accurate Sleep Tracker, Recorder, is about to bring significant changes to your sleep and life. Sleep Tracker, Recorder SUBSCRIPTION Sleep Tracker, Recorder comes with a 7-day free trial. After the free trial period ends you will need to subscribe. You can subscribe to Sleep Tracker, Recorder, choosing from the following plans: – 1 month – 12 months The subscription automatically renews unless auto-renewal is turned off at least 24 hours before the end of the current period. Payment will be charged to your iTunes account at confirmation of purchase. Account will be charged for renewal within 24 hours of the end of the current period, and the cost of the renewal will be provided. Subscriptions may be managed by the user. Auto-renewal may be turned off by going to the user’s Account Settings after purchase. No cancellation of the current subscription is allowed during the active subscription period. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication. For more information: Terms of Use - https://cdn.appcloudbox.net/healive/apps/dreamland/terms-of-service.html Privacy Policy - https://cdn.appcloudbox.net/healive/apps/dreamland/privacy.html

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

Sleep Tracker, Recorder4 screens
REM Sleep Tracker4 screens

Verdict

The call

The clearest difference is monetization model: REM Sleep Tracker at freemium against Sleep Tracker, Recorder's subscription. Sleep Tracker, Recorder's advantage is review sentiment (24% vs 0%) and rating (4.5 vs 4.2). On price, update cadence, ads and in-app purchases 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. Sleep Tracker, Recorder sells 4 in-app purchases, starting at $9.99 per month and REM Sleep Tracker sells 2 in-app purchases, starting at $9.99 per year. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Sleep Tracker, Recorder holds the better App Store score, 4.5 against 4.2. That said, the two scores are not equally well evidenced: Sleep Tracker, Recorder has 1.1K ratings behind it against 49, so its average is the more settled of the two. Written reviews point the same way: 24% of Sleep Tracker, Recorder's written reviews are positive against 0% of REM Sleep Tracker's.

UpkeepUpdate frequency

Sleep Tracker, Recorder ships an update fortnightly, REM Sleep Tracker every 2 weeks. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

Scorecard5 real differences · 5 level
Sleep Tracker, Recorder versus REM Sleep Tracker: the parameters behind the verdict, then further details
ParameterSleep Tracker, RecorderREM Sleep Tracker
PriceFreeFree
Rating4.5 (1.1K ratings) — better4.2 (49 ratings)
Positive reviews24.4% of reviews — better0.0% of reviews
Number of ratings1.1K — better49
Update frequencyFortnightlyEvery 2 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationSubscriptionFreemium — better
DevicesiPhone, iPod — betteriPhone
Requires iOS12.0 — better16.0
Further details — not scored
Size199 MB25 MB
Age rating4+4+
DeveloperHealive LimitedNicola Eusebi

Customer experience

Sleep Tracker, Recorder

All ratings1,141 ratings
Positive86.9%
Neutral4.0%
Negative9.1%
Written reviews45 reviews
Positive24.4%
Neutral4.4%
Negative71.1%

REM Sleep Tracker

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

Bugs and requests

Sleep Tracker, Recorder

Reported bugs

3 issues
  • Alarm issues
  • Inconsistent data recording
  • Subscription billing problems

Requested features

3 requests
  • Improved sleep tracking accuracy
  • More affordable pricing options
  • Better customer support and refund policy

REM Sleep Tracker

Not enough reviews yet to summarise bugs or requests.

In-app purchases

4 purchases

Sleep Tracker, Recorder

Subscriptions4
  • 1-Month Premium$9.991 Month
  • 1-Year Premium7 Days trial$29.991 Year
  • 1-Year Premium(Limited Offer)$29.991 Year
Show 1 more
  • 7-Day Free Premium7 Days trial$59.991 Year
2 purchases

REM Sleep Tracker

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

Questions

Is Sleep Tracker, Recorder free?
Sleep Tracker, Recorder is free to download, with in-app purchases available.
Is REM Sleep Tracker free?
REM Sleep Tracker is free to download, with in-app purchases available.
Which has better reviews, Sleep Tracker, Recorder or REM Sleep Tracker?
Sleep Tracker, Recorder is rated higher. Sleep Tracker, Recorder averages 4.5 out of 5 from 1.1K ratings, while REM Sleep Tracker averages 4.2 from 49 ratings.
Do Sleep Tracker, Recorder or REM Sleep Tracker have ads?
Neither Sleep Tracker, Recorder nor REM Sleep Tracker shows ads.
Which is updated more often, Sleep Tracker, Recorder or REM Sleep Tracker?
Sleep Tracker, Recorder ships an update fortnightly, and REM Sleep Tracker every 2 weeks. Most recently, Sleep Tracker, Recorder was updated on October 23, 2026 and REM Sleep Tracker on October 24, 2026.

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