Comparison

Pillow vs Simple Sleep

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

Simple Sleep

Easily monitor your sleep patterns with a minimalist tracker. Understand your rest duration, bedtime, and wake-up times with simple one-tap logging. Set sleep goals and view comprehensive insights, all while prioritizing your privacy with on-device data processing.

Highlights
  • Effortless one-tap sleep tracking
  • Comprehensive sleep insights and data
  • Personalized sleep goal setting
  • Battery-friendly design
  • Live Activities and Dynamic Island integration
  • Apple Health synchronization
  • Privacy-first, on-device data processing
Features
Read full description

Simple Sleep is the easiest way to track your sleep patterns without the clutter. Designed for simplicity and privacy, it helps you understand your rest with just one tap. Say goodbye to complex sleep trackers that drain your battery. Simple Sleep is designed to be lightweight and efficient, ensuring your phone lasts through the night. KEY FEATURES: Effortless Tracking Just tap "Sleep" when you go to bed and "Wake Up" when you rise. The beautiful dark interface (Dark Mode) is easy on your eyes at night. Comprehensive Insights Explore the brand new Insights tab to understand your habits better. View your average sleep duration, typical bedtime and wake-up times, and sleep regularity with detailed data spanning recent days, weeks, and months. Sleep Goals Set a personalized sleep goal and track your consistency. Easily monitor your progress and see exactly how many days you've successfully reached your target rest. Battery Friendly Our optimized tracking engine doesn't run heavy background processes. Your phone sleeps when you do. Live Activities & Dynamic Island See your sleep timer at a glance right from your Lock Screen or Dynamic Island (on iPhone 14 Pro and newer). Never wonder if you're still tracking. Apple Health Integration Seamlessly sync your sleep start and end times with Apple Health. Your data contributes to your overall health view without staying locked in our app. Track Interruptions Woke up in the middle of the night? Easily record wake-up events without stopping your session, giving you a clearer picture of your sleep quality. Privacy First We believe your sleep data belongs to you. Simple Sleep works entirely on-device. No accounts to create, no data tracking servers, and your data stays private. Download Simple Sleep today and start understanding your sleep better, simply. Terms of Use (EULA): https://madebyanji.com/simple-sleep/terms Privacy Policy: https://www.madebyanji.com/simple-sleep/privacy

Screenshots

Pillow4 screens
Simple Sleep4 screens

Verdict

The call

The clearest difference is review sentiment: Simple Sleep at 100% against Pillow's 42%. Simple Sleep also leads on rating (5.0 vs 4.4) and iOS requirement (15.1 vs 17.0). Pillow's advantage is ads (none vs shown) and ratings volume (96K vs 5). On price, update cadence, 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 6 in-app purchases, starting at $19.99 per month and Simple Sleep sells 4 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Simple Sleep holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Pillow has 96K ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 42% of Pillow's written reviews are positive against 100% of Simple Sleep's.

UpkeepUpdate frequency

Pillow ships an update every 10 days, Simple Sleep weekly. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

Scorecard6 real differences · 5 level
Pillow versus Simple Sleep: the parameters behind the verdict, then further details
ParameterPillowSimple Sleep
PriceFreeFree
Rating4.4 (96K ratings)5.0 (5 ratings) — better
Positive reviews41.6% of reviews100.0% of reviews — better
Number of ratings96K — better5
Update frequencyEvery 10 daysWeekly — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
Best chart rank#189 — better—
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPod
Requires iOS17.015.1 — better
Further details — not scored
Size691 MB56 MB
Age rating12+4+
DeveloperNeybox Digital Ltd.ANJI, LLC

Customer experience

Pillow

All ratings95,797 ratings
Positive84.6%
Neutral6.5%
Negative8.8%
Written reviews1,601 reviews
Positive41.6%
Neutral9.3%
Negative49.1%

Simple Sleep

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
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

Simple Sleep

Not enough reviews yet to summarise bugs or requests.

In-app purchases

6 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
One-time1
  • Pillow Premium - Legacy$249.99
4 purchases

Simple Sleep

Subscriptions3
  • Super Simple Sleep (1 Month)$2.991 Month
  • Super Simple Sleep (6 Months)3 Days trial$6.996 Months
  • Super Simple Sleep (1 Year)7 Days trial$9.691 Year
One-time1
  • Super Simple Sleep (Lifetime)$16.99

Questions

Is Pillow free?
Pillow is free to download, with in-app purchases available.
Is Simple Sleep free?
Simple Sleep is free to download, with in-app purchases available.
Which has better reviews, Pillow or Simple Sleep?
Simple Sleep is rated higher. Pillow averages 4.4 out of 5 from 96K ratings, while Simple Sleep averages 5.0 from 5 ratings.
Do Pillow or Simple Sleep have ads?
Simple Sleep shows ads; Pillow does not.
Which is updated more often, Pillow or Simple Sleep?
Pillow ships an update every 10 days, and Simple Sleep weekly. Most recently, Pillow was updated on October 28, 2026 and Simple Sleep on October 24, 2026.

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