Comparison

Sleepzy vs Hydrate

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

Hydrate

Features
Read full description

Hydrate is a simple water tracker and drink water reminder: log your water intake with one tap, keep a clear hydration log, and get reminded only when you actually fall behind. ONE TAP PER GLASS Your own cups sit right on the main screen — a 250 ml glass, a 500 ml bottle, your favourite mug. Tap one and the droplet fills. Tapped by mistake? Undo is right there. Tea, coffee, milk, juice or a drink you add yourself go in with one more tap, and you decide how much each one counts toward your goal. A DAILY GOAL THAT FITS YOUR DAY Set your daily goal yourself, or let Hydrate suggest one from your weight and how active you are. Tell it when you get up and when you go to bed, and it spreads the goal across your waking day — so you always see whether you are on pace or a little behind. REMINDERS THAT DON'T NAG Smart reminders come only when you fall behind your pace — at most a few a day — and go quiet once you reach your goal. Drink regularly and you may never get one. Prefer a fixed rhythm? Switch to regular reminders while you are awake, and let them go quiet once the goal is reached. Log a cup straight from the reminder with one tap. YOUR WATER LOG AT A GLANCE Weekly and monthly charts, your daily average, the days you reached your goal, your streak and the drinks you have most. Open any day to see every entry, and enjoy a small celebration each time you hit your goal. MILLILITRES OR OUNCES Works in ml or fl oz, with a light and a dark theme. PRIVATE AND OFFLINE No account, no sign-up, no internet needed. Your drinks, your goal and your weight stay on your phone. A one-file backup moves everything to a new phone. EVERYTHING IS FREE Every feature is free for everyone. Hydrate is supported by light, family-friendly ads; a single one-time purchase removes them forever. Hydrate is a logging tool, not medical advice. If you have a condition that affects how much you should drink, agree your goal with your doctor.

Screenshots

Sleepzy4 screens
Hydrate4 screens

Verdict

The call

The clearest difference is update cadence: Hydrate at fortnightly against Sleepzy's monthly. Sleepzy's advantage is iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support 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 13 in-app purchases, starting at $3.99 per 7 days and Hydrate sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Sleepzy ships an update monthly, Hydrate fortnightly. The most recent releases landed on November 3, 2026 and October 29, 2026 respectively.

Scorecard2 real differences · 8 level
Sleepzy versus Hydrate: the parameters behind the verdict, then further details
ParameterSleepzyHydrate
PriceFreeFree
Rating4.3 (22K ratings) — better—
Positive reviews37.0% of reviews—
Number of ratings22K — better—
Update frequencyMonthlyFortnightly — better
AdsYesYes
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size270 MB32 MB
Age rating17+4+
DeveloperMosaic S.r.l.OBRT NUCLEUS Mostar

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

Hydrate

Not enough reviews yet to summarise bugs or requests.

In-app purchases

13 purchases

Sleepzy

Subscriptions13
  • 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 10 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 Pro7 Days trial$7.997 Days
  • Sleepzy Premium 3 Months$9.993 Months
  • Sleepzy Premium 1 Year$14.991 Year
  • Sleepzy Premium 1 Year7 Days trial$29.991 Year
  • Sleepzy Premium 1 Year$69.991 Year
  • Sleepzy Premium 1 Year7 Days trial$89.991 Year
1 purchases

Hydrate

One-time1
  • Remove Ads$8.99

Questions

Is Sleepzy free?
Sleepzy is free to download, with in-app purchases available.
Is Hydrate free?
Hydrate is free to download, with in-app purchases available.
Do Sleepzy or Hydrate have ads?
Both Sleepzy and Hydrate show ads.
Which is updated more often, Sleepzy or Hydrate?
Sleepzy ships an update monthly, and Hydrate fortnightly. Most recently, Sleepzy was updated on November 3, 2026 and Hydrate on October 29, 2026.

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