Comparison

Pillow vs Sleep Tracker

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

Head to head
About

Pillow

This app helps you understand and improve your sleep. It automatically tracks your sleep cycles, analyzes heart rate, and records audio events like snoring. Get personalized insights and tips to wake up feeling refreshed.

Highlights
  • Automatic sleep tracking
  • Smart alarm clock
  • Snore and sleep talking recorder
  • Sleep cycle analysis
  • Heart rate analysis
  • Personalized sleep tips
  • Sleep aid library
Features
Read full description

Sleep trouble? Sleep better with Pillow, your smart sleep tracker. Pillow can analyze your sleep cycles automatically using your Apple Watch, iPhone or iPad. Use Pillow as a smart alarm clock to wake up at the lightest possible sleep stage and start your day refreshed and relaxed. Record important audio events such as snoring, sleep apnea, and sleep talking. Explore trends about your sleep and compare your sleep quality with many Apple Health metrics that affect sleep. As seen on: The New York Times, Forbes, The Guardian, BuzzFeed, The Washington Post, TechCrunch, MacStories, Daily Mail, and many more. Rated as one of the best sleep tracking apps for the Apple Watch and iPhone. Join the millions that have discovered the life-changing benefits of great sleep! TRACK YOUR SLEEP AUTOMATICALLY - Simply wear your Apple Watch during sleep. Pillow will automatically detect and analyze your sleep. - View last night's report right on your Apple Watch, along with the heart rate analysis for the night. - Switch between manual and automatic mode anytime. SLEEP CYCLE & HEART RATE ANALYSIS - Advanced sleep cycle analysis algorithm based on the latest scientific findings in sleep research. - Detailed heart rate analysis - Detailed sleep stage diagram (Awake, REM, Light Sleep, Deep Sleep) and sleep score. - Home Screen, Lock Screen Widgets and Apple Watch Complications AUDIO RECORDINGS USING MACHINE LEARNING - Snoring, sleep apnea, sleep talking and other nightly sounds. - All processing is done using on-device intelligence to ensure privacy. PERSONALISED INSIGHTS & SLEEP TIPS - Create a unique personal sleep program to reach your goals - Regularly updated sleep tips - Advanced Insights, including optimal bedtime, chronotype and more. SLEEP TRENDS - Explore your sleep history with Week, Month, Year, and All Time overviews. - Compare your sleep quality with many Apple Health categories that affect sleep. BACKUP & SYNCHRONIZE - Synchronize and backup your sleep data and audio recordings between your devices. ALARM PRESETS & NAPS - Powernap, recovery, and full-cycle nap - Customisable alarm presets MOOD & NOTES - Track your mood when you wake up - Discover how your notes affect your sleep quality SLEEP AID - Access an expanding library of Meditations, Bedtime Stories, Soundscapes and Music. - Use a track from Apple Music or iTunes as an alarm. - Siri Wind Down support PREMIUM FEATURES: - Unlimited sleep history & analysis - Advanced sleep analysis - Sleep trends & Apple Health comparison - Sleep notes - Heart rate analysis - Sound recordings - Nap modes & Customisable presets - Access to Sleep aid library - Access to all wake-up melodies - Discover: Create a personalised sleep program. - Wake-up melodies from your iTunes library or Apple Music - Data export in CSV format - Smart Wake-up Learn more at https://pillow.app SUBSCRIPTION INFORMATION Your payment will be charged to your iTunes Account as soon as you confirm your purchase. You can manage your subscriptions and turn off auto-renewal from your Account Settings after the purchase. If you start a free trial, you will be charged automatically at the end of the trial period unless you cancel 24 hours before the expiration period. Your subscription will renew automatically unless you turn off auto-renew at least 24 hours before the end of the current period. The renewal cost will be charged to your account within 24 hours before the end of the current period. When canceling a subscription, your subscription will stay active until the end of the period. Auto-renewal will be disabled, but the existing subscription will not be refunded. If offered, any unused portion of a free trial period will be forfeited when purchasing a subscription. Terms & Privacy Policy: https://pillow.app/pillow-privacy-policy-en

About

Sleep Tracker

Easily track and analyze your sleep patterns by logging bedtime, wake time, sleep quality, and mood. Visualize your habits with calendar views and statistical graphs to understand and improve your sleep.

Highlights
  • Log bedtime and wake time
  • Record sleep quality and mood
  • Calendar view of sleep records
  • Display sleep statistics
  • Analyze average sleep time
  • Visualize sleep patterns
Features
Read full description

This app is a simple sleep log designed to track and analyze your sleep habits. By recording your bedtime, wake time, sleep quality, and mood, you can visualize your sleep patterns.\n\nYou can check your records in a calendar format and view statistics. Average sleep time and sleep quality are displayed in graphs to help you better understand your sleep habits.\n\n【Main Features】\n- Record bedtime and wake time\n- Log sleep quality, mood, and condition\n- View records in a calendar\n- Display sleep statistics\n- Analyze average sleep time and quality\n\nMake sleep tracking a habit and aim for better sleep.

Screenshots

Pillow4 screens
Sleep Tracker2 screens

Verdict

The call

The clearest difference is ads: Pillow at none against Sleep Tracker's shown. Pillow also leads on ratings volume (96K vs 4) and update cadence (every 9 days vs every 6 weeks). Sleep Tracker's advantage is iOS requirement (15.0 vs 17.0). On price, rating, in-app purchases and monetization model 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. Pillow sells 5 in-app purchases, starting at $19.99 per month and Sleep Tracker sells 2 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 — 4.4 for Pillow against 4.5 for Sleep Tracker. That said, the two scores are not equally well evidenced: Pillow has 96K ratings behind it against 4, so its average is the more settled of the two.

UpkeepUpdate frequency

Pillow ships an update every 9 days, Sleep Tracker every 6 weeks. The most recent releases landed on October 31, 2026 and October 28, 2026 respectively.

Scorecard5 real differences · 6 level
Pillow versus Sleep Tracker: the parameters behind the verdict, then further details
ParameterPillowSleep Tracker
PriceFreeFree
Rating4.4 (96K ratings)4.5 (4 ratings) — better
Positive reviews41.7% of reviews—
Number of ratings96K — better4
Update frequencyEvery 9 days — betterEvery 6 weeks
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
Best chart rank#158 — better—
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod
Requires iOS17.015.0 — better
Further details — not scored
Size691 MB78 MB
Age rating12+4+
DeveloperNeybox Digital Ltd.kota tada

Customer experience

Pillow

All ratings95,807 ratings
Positive84.6%
Neutral6.5%
Negative8.8%
Written reviews1,612 reviews
Positive41.7%
Neutral9.3%
Negative49.0%

Sleep Tracker

All ratings4 ratings
Positive75.0%
Neutral25.0%
Negative0.0%

Bugs and requests

Pillow

Reported bugs

4 issues
  • App crashes or freezes
  • Sleep data not syncing properly
  • Audio recording issues
  • Alarm not working as expected

Requested features

4 requests
  • Ability to edit sleep sessions and data
  • Sleep cycle trends and insights
  • Dream journal integration
  • More customization options for alarms and sounds

Sleep Tracker

Not enough reviews yet to summarise bugs or requests.

In-app purchases

5 purchases

Pillow

Subscriptions5
  • Pillow Premium - Monthly$19.991 Month
  • Premium Sleep Tracking7 Days trial$49.991 Year
  • Pillow Premium - Annual$49.991 Year
Show 2 more
  • Pillow Premium - Annual1 Year trial$49.991 Year
  • Pillow Premium - Quarterly$59.993 Months
2 purchases

Sleep Tracker

Subscriptions2
  • Ad-free for 1 month7 Days trial$4.991 Month
  • Ad-free for 1 year14 Days trial$49.991 Year

Questions

Is Pillow free?
Pillow is free to download, with in-app purchases available.
Is Sleep Tracker free?
Sleep Tracker is free to download, with in-app purchases available.
Which has better reviews, Pillow or Sleep Tracker?
Sleep Tracker is rated higher. Pillow averages 4.4 out of 5 from 96K ratings, while Sleep Tracker averages 4.5 from 4 ratings.
Do Pillow or Sleep Tracker have ads?
Sleep Tracker shows ads; Pillow does not.
Which is updated more often, Pillow or Sleep Tracker?
Pillow ships an update every 9 days, and Sleep Tracker every 6 weeks. Most recently, Pillow was updated on October 31, 2026 and Sleep Tracker on October 28, 2026.

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