Comparison

Sleepzy vs WatchInterval Lite

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

WatchInterval Lite

Read full description

Standalone watch interval fitness timer. Define multiple intervals for different activities and multiple sets. Save and restore. Graphical timer view. The lite version has no save/restore functionality

Screenshots

Sleepzy4 screens

Verdict

The call

The clearest difference is in-app purchases: WatchInterval Lite at none against Sleepzy's 10. WatchInterval Lite also leads on ads (none vs shown). Sleepzy's advantage is update cadence (monthly vs every 41 months). On price, device support and iOS requirement 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. WatchInterval Lite asks for nothing beyond the download.

UpkeepUpdate frequency

Sleepzy ships an update monthly, WatchInterval Lite every 41 months. The most recent releases landed on November 12, 2026 and November 3, 2026 respectively.

Scorecard3 real differences · 7 level
Sleepzy versus WatchInterval Lite: the parameters behind the verdict, then further details
ParameterSleepzyWatchInterval Lite
PriceFreeFree
Rating4.3 (22K ratings) — better—
Positive reviews37.0% of reviews—
Number of ratings22K — better—
Update frequencyMonthly — betterEvery 41 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPod, Apple Watch
Requires iOS13.013.0
Further details — not scored
Size270 MB3 MB
Age rating17+4+
DeveloperMosaic S.r.l.Paul Scott

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

WatchInterval Lite

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
None

WatchInterval Lite

No in-app purchases

Questions

Is Sleepzy free?
Sleepzy is free to download, with in-app purchases available.
Is WatchInterval Lite free?
WatchInterval Lite is free to download, with no in-app purchases.
Do Sleepzy or WatchInterval Lite have ads?
Sleepzy shows ads; WatchInterval Lite does not.
Which is updated more often, Sleepzy or WatchInterval Lite?
Sleepzy ships an update monthly, and WatchInterval Lite every 41 months. Most recently, Sleepzy was updated on November 12, 2026 and WatchInterval Lite on November 3, 2026.

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