Comparison

Sleepzy vs Undoom

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

Undoom

This app helps you reduce time spent on distracting applications by introducing a pause screen when you attempt to open them. It offers breathing exercises to manage scrolling urges and tracks your progress in building healthier digital habits.

Highlights
  • App blocking with pause screens
  • Breathing exercises for urge management
  • Progress tracking and streak building
  • Integration with Apple Screen Time
  • Customizable app usage limits
Read full description

You will not wish you scrolled more. Your time is limited. The feed does not end. Undoom helps you stop scrolling and spend time on what matters to you. A subscription is required to unlock all features. You can choose a weekly or yearly plan. HOW IT WORKS You choose the apps you want to use less. Undoom shows a pause screen when you try to open one. This pause gives you time to choose what to do next. HELP WITH THE URGE TO SCROLL Undoom helps you see what caused the urge. Simple breathing steps can help you wait for the urge to pass. TIME FOR YOUR LIFE Less time on your phone can mean more time with family. It can also give you more time to rest or do things you enjoy. SEE YOUR PROGRESS You can track your choices and build streaks as you learn to scroll less. Less scrolling. More living. WHAT YOU NEED Undoom uses Apple’s Screen Time tools. You must give Screen Time access so Undoom can pause your chosen apps. You do not need to create an account. PAYMENT Your subscription renews automatically unless you cancel it. You can manage or cancel it in your Apple account settings. Terms of Service: https://undoom.latent-studio.com/terms Privacy Policy: https://undoom.latent-studio.com/privacy

Screenshots

Sleepzy4 screens
Undoom4 screens

Verdict

The call

The clearest difference is monetization model: Sleepzy at freemium against Undoom's subscription. Sleepzy also leads on ratings volume (22K vs 2) and rating (4.3 vs 4.0). Undoom's advantage is ads (none vs shown). On price, update cadence 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. Sleepzy sells 10 in-app purchases, starting at $3.99 per 7 days and Undoom sells 6 in-app purchases, starting at $8.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Sleepzy holds the better App Store score, 4.3 against 4.0. That said, the two scores are not equally well evidenced: Sleepzy has 22K ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on November 12, 2026 and October 31, 2026 respectively.

Scorecard6 real differences · 4 level
Sleepzy versus Undoom: the parameters behind the verdict, then further details
ParameterSleepzyUndoom
PriceFreeFree
Rating4.3 (22K ratings) — better4.0 (2 ratings)
Positive reviews37.0% of reviews—
Number of ratings22K — better2
Update frequencyMonthlyMonthly
AdsYesNo — better
In-app purchasesYesYes
MonetizationFreemium — betterSubscription
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone
Requires iOS13.0 — better16.0
Further details — not scored
Size270 MB75 MB
Age rating17+4+
DeveloperMosaic S.r.l.Fabijan Bajo

Customer experience

Sleepzy

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

Undoom

All ratings2 ratings
Positive50.0%
Neutral50.0%
Negative0.0%

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

Undoom

Not enough reviews yet to summarise bugs or requests.

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
6 purchases

Undoom

Subscriptions6
  • Undoom Pro (Weekly)$8.997 Days
  • Undoom Pro (Monthly)$9.991 Month
  • Undoom Pro (Yearly)$24.991 Year
Show 3 more
  • Undoom Pro (Yearly)$34.991 Year
  • Undoom Pro (Yearly)$49.991 Year
  • Undoom Pro (Yearly)7 Days trial$49.991 Year

Questions

Is Sleepzy free?
Sleepzy is free to download, with in-app purchases available.
Is Undoom free?
Undoom is free to download, with in-app purchases available.
Which has better reviews, Sleepzy or Undoom?
Sleepzy is rated higher. Sleepzy averages 4.3 out of 5 from 22K ratings, while Undoom averages 4.0 from 2 ratings.
Do Sleepzy or Undoom have ads?
Sleepzy shows ads; Undoom does not.
Which is updated more often, Sleepzy or Undoom?
Sleepzy ships an update monthly, and Undoom monthly. Most recently, Sleepzy was updated on November 12, 2026 and Undoom on October 31, 2026.

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