Comparison

Sleepzy vs Rem

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

Head to head
About

Sleepzy

This smart alarm clock tracks sleep patterns, wakes you gently during your lightest sleep phase, and analyzes sleep quality. It provides insights into sleep debt, offers relaxing sounds to help you unwind, and can sync with health apps for comprehensive data tracking.

Highlights
  • Smart alarm wakes you in lightest sleep phase
  • Sleep pattern tracking and analysis
  • Sleep debt and quality monitoring
  • Relaxing sounds and AI music for sleep
  • Weekly sleep statistics and insights
  • Snore detection (Premium feature)
  • Syncs with Apple Health
Features
Read full description

Sleepzy is a smart alarm clock that tracks your sleep patterns, wakes you up during the lightest sleep phase in a way that feels natural to get up, analyzes your sleep quality, and notifies you if you have a sleep debt. It's an essential app for everyone, whether you're a morning person or a night owl. IMPROVE YOUR AWAKENING: - Wake up rested at the optimal time - don't feel groggy anymore! - Sync with Apple Music to use your favorite tunes as an alarm - set your mood for the day TRACK & ANALYZE YOUR SLEEP: - Set your Sleep Goal and track Sleep Debt - stay motivated to get enough hours of sleep - Track your sleep patterns - focus on sleeping not only long enough but well enough - Know your Sleep Quality - make adjustments to your daily habits to get your quality % up - Get helpful weekly stats UNWIND YOUR MIND BEFORE SLEEP: - Fall asleep to relaxing sounds & classical melodies - Listen to Dream Radio: doze off to AI-generated music and hypnotic visuals GET HELPFUL INSIGHTS: - Receive daily personal sleep advice and explore worldwide sleep statistics with "Insights" - Get Weather Forecast at your location in the morning to plan the day easily KEEP YOUR SLEEP DATA SYNCED & SECURED: - Sync your data with the Apple Health app - Backup your sleep data and restore it whenever you need it Sleepzy + Apple Watch = More Fun Monitor your sleep with Apple Watch - the clear and easy-to-use interface will help you overview what was going on while you're asleep Go Premium to: - Dive deep into insights with advanced stats and track your progress over time - Find out whether you snore - Listen to a wider variety of relaxing sounds & classical music - Use special breathing technics to calm your mind - Unlock all sleep insights - Get rid of ads Please note that movement and noise from pets or a partner may impact results. Start waking up stress-free at the best moment possible. Revolutionize your mornings! * Subscription payments will be charged to your iTunes account at confirmation of your purchase and upon commencement of each renewal term. Subscription with a free trial period will automatically renew to a paid subscription. You can cancel your subscription or free trial in the iTunes settings at least 24-hours before the end of the free trial period. The cancellation will take effect the day after the last day of the current subscription period and you will be downgraded to the free service. * Please note: any unused portion of a free trial period (if offered) will be forfeited when you purchase a premium subscription during the free trial period. For complete access to all features, you will need to allow access to the following: * Microphone – so the app can analyze your sleep and record your night sounds. * Notifications – so the alarm will ring. * Media Library Access – so you can set your own music as an alarm sound. * Health App – so you can export your data to Apple Health. * Location – so you can receive the weather forecast for your area. Privacy Policy: https://support.bendingspoons.com/privacy.html?app=1064910141 Terms of service: https://support.bendingspoons.com/tos.html?app=1064910141 Contact us: sleepzy@bendingspoons.com

About

Rem

This app automatically tracks your sleep cycles using your Apple Watch, providing detailed analysis of your sleep patterns. It offers insights into sleep quality, disruptions, and heart rate, helping you understand and improve your rest.

Highlights
  • Automatic sleep tracking
  • Sleep pattern analysis
  • Snore detection
  • Sleep score and breakdown
  • Heart rate analysis
  • Smart alarm clock
Features
Read full description

Unlock the secrets of a good night's sleep with Rem, the smart autosleep tracker. With its advanced AI-Machine Learning technology, Rem provides an in-depth analysis of your sleep patterns and helps you understand the impact of your habits and routines on your sleep quality. Get ready to say goodbye to restless nights and hello to sweet dreams with Rem. = Key Features = — Completely Automatic and Easy to use — Sleep Pattern Diagram (Rem stage included) — Snore Detection — Sleep Score — Score Breakdown — Heart Rate Analysis (Dip and Detail Diagram) — Sleep Regularity — Time to Sleep — Trends — Nap Detection — Sleep History — Sleep Assessment — Smart Alarm Clock — Low Battery Usage — Compatible with All Available Apple Watch Versions ============= HOW REM WORKS: • All you need to do is wear your Apple Watch to bed. • An iwatch sleep tracker, facilitates the AI-Machine Learning algorithm to analyze sleep cycle. • Moving more or less than others, Rem adjusts automatically to your personal data • We ignore sleep sessions that are less than 1 hour. To enable snore detection: 1. Connect your iPhone to a power source 2. Tap the "Start Tracking" button 3. Optionally, set a gentle alarm to wake you up. — EASY TO USE — Just wear your Apple watch before bedtime and check your sleep log after you wake up. Your shut eye report is displayed in a clear and understandable way. — SLEEP PATTERN DIAGRAM — Understand your sleep cycles with simple graphs. Discover how to get the restful and restorative sleep you deserve! You can find out the exact times you’ve been disrupted, as well as easily learn the total amount of deep, light, and REM phases. — SNORE Detection — You can identify if snoring is affecting your sleep quality and take necessary actions to improve it. Rem is also equipped with environment sound detection, so you can monitor the ambient noise levels and make adjustments for a more comfortable sleeping environment. — SLEEP SCORE — Your Sleep Score is displayed clearly with a number 0-100 which is an accurate interpretation of your rest quality. — SCORE BREAKDOWN — REM App highlights the most relevant data of your sleep: • Time Asleep • Sleep Details » The total minutes of your deep and REM phases, the most restorative phase of your sleep • Heart Rate » Your heart rate analysis is key for measuring your shut eye quality. You can view your sleeping heart rate graph, your average sleeping heart rate, and the dip percentage of your heart rate during sleep • Disruption • Regularity » REM app records your sleep rhythm automatically and will demonstrate your sleep consistency in a user-friendly diagram. • Time To Sleep • Respiratory Rate » The number of times you breathe in a minute during sleep • Blood Oxygen » The level of blood oxygen during sleep — TRENDS — Follow the impact of your routines on your sleep quality with help of trend diagrams. — SLEEP HISTORY — Monitor your previous sleep diagrams and compare them to your latest data. — NAP DETECTION — REM is an auto nap tracker and will show the nap sessions in a separate field. — SLEEP ASSESSMENT — Learn more about healthy sleep practices by taking the assessment and set yourself up for better sleep. — SMART ALARM — Wake up refreshed and ready for the day. Our smart alarm clock gently eases you out of deep sleep. To use this feature, watchOS 6 or higher is required. — LOW BATTERY USAGE — Don’t worry about draining your battery because it’s low battery usage, even less than your usual usage of Watch. Charge your watch during the day or before sleep. Make sure it has at least a %30 charge. Rem is for anybody who struggles with insomnia or sleep apnea. With the power of its sleep tracking algorithm, you can find accurate and valuable insight about your sleep. Set the smart alarm before bed time and rise refreshed and on-time. It’s a simple-to-use sleep recorder, no need to put it under your pillow. Terms and Privacy Policy: https://bettersleeapapp.com/rem/terms.html

Screenshots

Sleepzy4 screens
Rem4 screens

Verdict

The call

The clearest difference is ads: Rem at none against Sleepzy's shown. Sleepzy's advantage is ratings volume (22K vs 2.7K) and device support (4 vs 2). On price, rating, review sentiment and update cadence 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. Sleepzy sells 10 in-app purchases, starting at $3.99 per 7 days and Rem sells 8 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.3 for Sleepzy against 4.2 for Rem. That said, the two scores are not equally well evidenced: Sleepzy has 22K ratings behind it against 2.7K, so its average is the more settled of the two. Written reviews split almost evenly too, at 37% and 38% positive.

UpkeepUpdate frequency

Sleepzy ships an update monthly, Rem every 6 weeks. The most recent releases landed on November 9, 2026 and November 7, 2026 respectively.

Scorecard4 real differences · 6 level
Sleepzy versus Rem: the parameters behind the verdict, then further details
ParameterSleepzyRem
PriceFreeFree
Rating4.3 (22K ratings) — better4.2 (2.7K ratings)
Positive reviews37.0% of reviews37.7% of reviews — better
Number of ratings22K — better2.7K
Update frequencyMonthly — betterEvery 6 weeks
AdsYesNo — better
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, Apple Watch
Requires iOS13.0 — better16.0
Further details — not scored
Size270 MB102 MB
Age rating17+12+
DeveloperMosaic S.r.l.WELLBEINE TECHNOLOGIES INC

Customer experience

Sleepzy

All ratings22,378 ratings
Positive81.7%
Neutral6.6%
Negative11.7%
Written reviews632 reviews
Positive37.0%
Neutral13.1%
Negative49.8%

Rem

All ratings2,725 ratings
Positive78.2%
Neutral6.2%
Negative15.6%
Written reviews334 reviews
Positive37.7%
Neutral12.3%
Negative50.0%

User reviews

Sleepzy

From 22K App Store ratings

What we love

  • 🚀 Effective alarm clock
  • 👍 Customizable alarm sounds
  • 🌙 Sleep tracking features
  • 💤 Gradual wake-up process

Room to improve

  • 🐛 Inaccurate sleep tracking
  • 🔋 Drains phone battery
  • 🔒 Privacy concerns with microphone
  • 💰 Overly aggressive upselling of premium features

Rem

From 2.7K App Store ratings

What we love

  • 🚀 Accurate sleep tracking
  • 📊 Detailed sleep data
  • 🔍 Helpful for monitoring sleep issues
  • 👍 Simple and intuitive interface
  • 💤 Tracks naps

Room to improve

  • 🐛 Inconsistent data recording
  • ⏰ Inaccurate sleep/wake times
  • 💰 Expensive subscription
  • 🔇 Snoring/noise tracking not working
  • 🔄 Changing/inconsistent sleep results

Bugs and requests

Sleepzy

Reported bugs

3 issues
  • Alarm not going off as scheduled
  • App crashing or freezing
  • Inconsistent data recording

Requested features

4 requests
  • Integration with other sleep/health apps
  • More detailed sleep analysis and insights
  • Ability to adjust alarm time range
  • Nap tracking and alarm

Rem

Reported bugs

3 issues
  • App crashes or freezes
  • Disconnection issues with Apple Watch
  • Lack of customer support responsiveness

Requested features

5 requests
  • Historical sleep data and trends
  • Ability to edit sleep times
  • Improved smart alarm functionality
  • Better integration with Apple Health
  • More customization options

In-app purchases

10 purchases

Sleepzy

Subscriptions10
  • Sleepzy Premium 1 Week7 Days trial$3.997 Days
  • Sleepzy Premium 1 Month7 Days trial$4.991 Month
  • Sleepzy Premium 1 Week3 Days trial$4.997 Days
Show 7 more
  • Sleepzy Pro$4.997 Days
  • Sleepzy Pro7 Days trial$4.997 Days
  • Sleepzy Premium 1 Month7 Days trial$6.991 Month
  • Sleepzy Premium 1 Month$6.991 Month
  • Sleepzy Premium 3 Months$9.993 Months
  • Sleepzy Premium 1 Year$69.991 Year
  • Sleepzy Premium 1 Year7 Days trial$89.991 Year
8 purchases

Rem

Subscriptions7
  • Monthly Subscription7 Days trial$4.991 Month
  • 3 Month Subscription7 Days trial$19.493 Months
  • 6 Month Subscription7 Days trial$25.996 Months
Show 4 more
  • Yearly Subscription7 Days trial$29.991 Year
  • Yearly Subscription$29.991 Year
  • Rem Premium7 Days trial$29.991 Year
  • Yearly Subscription7 Days trial$59.991 Year
One-time1
  • Lifetime Subscription$49.99

Questions

Is Sleepzy free?
Sleepzy is free to download, with in-app purchases available.
Is Rem free?
Rem is free to download, with in-app purchases available.
Which has better reviews, Sleepzy or Rem?
Sleepzy is rated higher. Sleepzy averages 4.3 out of 5 from 22K ratings, while Rem averages 4.2 from 2.7K ratings.
Do Sleepzy or Rem have ads?
Sleepzy shows ads; Rem does not.
Which is updated more often, Sleepzy or Rem?
Sleepzy ships an update monthly, and Rem every 6 weeks. Most recently, Sleepzy was updated on November 9, 2026 and Rem on November 7, 2026.

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