Comparison

Sleep Cycle vs SleepSpace

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

Head to head
About

Sleep Cycle

This app uses sound analysis to track sleep patterns, identify potential issues, and build healthier sleep routines. It features an AI sleep coach, a smart alarm to wake you gently, and tools to record snoring and sleep talking.

Highlights
  • AI sleep coach
  • Smart Alarm clock
  • Sleep pattern tracking
  • Snore and cough detection
  • Sleep sounds library
  • Sleep analysis
Features
Read full description

Built on science, Sleep Cycle uses sound analysis to track and improve sleep for over 3 million users worldwide. Our AI sleep coach, sleep tracker and Smart Alarm clock app help users to identify potential sleep issues, gain valuable insights into their sleep patterns and build a healthier sleep routine. Sleep Cycle is the world’s no.1 sleep app with more than 40 million downloads. Track your rest, wake refreshed, and build lifelong sleep habits. AWARDS & RECOGNITIONS Sleep Cycle has been awarded Best Sleep App in 2024 by Digital Health Magazine and featured as App of the Month in Wellness Today. In 2024, Sleep Cycle won two Merit Healthcare Awards: Gold for Mobile Digital Health Resources and Silver for Best Use of Artificial Intelligence. WITH SLEEP CYCLE YOU CAN • Get guidance based on your sleep patterns with our AI sleep coach Luma. • Wake up gently during your lightest sleep phase with our Smart Alarm clock. • Track every night using patented sound technology or accelerometer-based sleep detection, no wearables needed. • Detect nighttime noises like snoring, coughing, or sleep talking, for a path to quieter sleep. • Drift off easily using our sleep sounds library of relaxing stories, sleepy soundscapes and guided meditations. • Understand your sleep patterns with long-term trends and compare your sleep to global benchmarks. • Log sleep notes to understand how caffeine, stress, or exercise affect your rest. WHY USE SLEEP CYCLE? • Wake feeling refreshed with no more groggy mornings. • Get daily stats to help you understand your rest. • Sleep guidance based on your tracked nights. • Health insights with snoring and cough tracking for wellness. • No gadgets, just place your phone on the nightstand. • Premium tools like supportive soundscapes, sleep stories, data export, Philips HUE sunrise and Apple Health sync. ABOUT SLEEP CYCLE Sleep Cycle helps you sleep smarter. Track your nights, gain valuable insights into your sleep patterns, and wake at just the right time to start the day energized. Sleep Cycle gives you science-backed tools and an AI sleep coach Luma to help you improve your sleep for brighter days. Our popular features include: • Superior sleep tracker. • AI sleep coach. • Smart Alarm clock. • Sleep talking recorder. • Advanced sleep analysis. • Snore tracker. • Sleep timer. • Cough recorder. • Sleep stages. • Sleep programs. • SleepGPT. • Sleep goal and score. • Relaxing sleep sounds like nature, rain and ocean sounds. • Sleep Aid including calming meditations and breathing exercises. • And more features to help you improve your rest. TALK TO US If you need any help please contact our customer service at support.sleepcycle.com JOIN THE COMMUNITY ▶ Web: https://sleepcycle.com/ ▶ Instagram: https://www.instagram.com/sleepcycleapp/ ▶ TikTok: https://www.tiktok.com/@sleep_cycle ▶ Reddit: https://www.reddit.com/r/sleepcycle/ Terms & Privacy https://www.sleepcycle.com/privacy-policy/ DOWNLOAD NOW – Sleep Better with Sleep Cycle

About

SleepSpace

This app helps you fall asleep faster, sleep more deeply, and wake up refreshed with adaptive sounds, smart alarms, and personalized sleep tracking. It functions as a complete sleep system, integrating with your phone, wearables, or smart bedroom devices to strengthen natural sleep rhythms.

Highlights
  • Adaptive sounds for falling asleep
  • Smart alarm for refreshed waking
  • Personalized sleep tracking
  • Integration with wearables and smart devices
  • AI-powered sleep assistant
  • Privacy-first design
Features
Read full description

Sleep tracking tells you what happened. SleepSpace helps you change what happens tonight. Fall asleep with adaptive sound, support deeper sleep through the night, wake during a lighter sleep phase, and understand your recovery with personalized sleep insights. Designed by sleep scientist Dr. Dan Gartenberg, SleepSpace brings together your phone, wearables, and guided sleep programs into one complete sleep system. Built on peer-reviewed research and more than $4M in NIH-funded sleep science. Featured by TED, NPR, CNN, The NYTimes, TIME, Reuters, Human Upgrade, Ben Greenfield Life, Sleep Review, & more. FALL ASLEEP FASTER Wind down with relaxing sounds, guided breathing, meditations, and gentle biofeedback. SleepSpace helps your body transition into sleep with calming bedtime routines. SLEEP DEEPER Use adaptive sound masking and overnight sleep support to reduce disruptions and promote a more stable night. Track sleep stages, snoring, awakenings, recovery, and sleep quality with clear insights. Choose sounds for your goals, including meditations, white noise, nature sounds, dream support, and sound patterns designed to support deeper, more restorative sleep. WAKE UP REFRESHED Wake during a lighter sleep phase with a smart alarm designed to reduce morning brain fog. Use smart sound or Apple Watch vibration to wake gently without disturbing your partner. Start the day with a clearer view of your recovery, alertness, and next best steps. TRACK SLEEP YOUR WAY SleepSpace works with: • Your phone on the nightstand or mattress • Apple Watch sleep tracking informed by peer-reviewed research • Popular wearables such as Oura and WHOOP • SleepSpace Charger and connected sleep devices • A clinically inspired sleep diary based on the consensus sleep diary Your data is unified into one clear sleep, recovery, and alertness view. PERSONALIZED SLEEP PROGRAMS Build a nightly Sleep Journey with sounds, wake windows, and routines tailored to your goals. Follow structured sleep programs inspired by evidence-based behavioral sleep techniques, including cognitive behavioral therapy for insomnia. DAILY ALERTNESS AND GUIDANCE See how your sleep affects daytime energy, focus, and recovery. Get simple daily tasks to support better sleep habits over time. AI-POWERED SLEEP SUPPORT Dr. Snooze™ is your built-in AI sleep assistant, offering tips based on your sleep patterns. When you need extra support, you can also connect with a human coach. PRIVACY-FIRST DESIGN SleepSpace works offline and in airplane mode. Sound is analyzed as decibel levels and is not recorded unless you explicitly enable recording. Your sleep data stays private and secure. SleepSpace is built on HIPAA-compliant backend infrastructure with safeguards for health data, including encryption, access controls, audit logging, and secure data handling practices. IMPORTANT INFORMATION SleepSpace is designed for general wellness and sleep support. It is not intended to diagnose, treat, cure, or prevent any disease or medical condition. Consult a qualified healthcare professional for medical concerns. SleepSpace syncs with Apple Health to measure sleep and sleep-related health data. Support messages are voluntarily shared through Intercom. SUBSCRIPTION PRICING & TERMS SleepSpace includes a 7-day free trial. After the free trial, a subscription is required to continue using premium features. Payment will be charged to your Apple ID account at confirmation of purchase. Your subscription automatically renews unless canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours before the end of the current period. You can manage or cancel your subscription in your App Store account settings. Any unused portion of a free trial period, if offered, will be forfeited when you purchase a subscription, where applicable. Terms: https://sleepspace.com/sleepspace-terms-of-use/ Privacy: https://sleepspace.com/privacy-policies/

Screenshots

Sleep Cycle4 screens
SleepSpace4 screens

Verdict

The call

The clearest difference is rating: Sleep Cycle at 4.7 against SleepSpace's 4.2. Sleep Cycle also leads on ratings volume (31K vs 858) and chart position (#47 vs unranked). SleepSpace's advantage is review sentiment (57% vs 40%). On price, update cadence, ads 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. Sleep Cycle sells 9 in-app purchases, starting at $2.99 per month and SleepSpace sells 13 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Sleep Cycle holds the better App Store score, 4.7 against 4.2. That said, the two scores are not equally well evidenced: Sleep Cycle has 31K ratings behind it against 858, so its average is the more settled of the two. Written reviews complicate that: 40% of Sleep Cycle's written reviews are positive against 57% of SleepSpace's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 31, 2026 and October 29, 2026 respectively.

Scorecard5 real differences · 6 level
Sleep Cycle versus SleepSpace: the parameters behind the verdict, then further details
ParameterSleep CycleSleepSpace
PriceFreeFree
Rating4.7 (31K ratings) — better4.2 (858 ratings)
Positive reviews39.5% of reviews57.0% of reviews — better
Number of ratings31K — better858
Update frequencyWeeklyWeekly
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
Best chart rank#47 — better—
DevicesiPhone, iPad, Apple WatchiPhone, iPad, Apple Watch
Requires iOS16.2 — better18.0
Further details — not scored
Size293 MB172 MB
Age rating4+4+
DeveloperSleep Cycle ABProactive Life Inc

Customer experience

Sleep Cycle

All ratings31,181 ratings
Positive93.3%
Neutral3.1%
Negative3.6%
Written reviews2,304 reviews
Positive39.5%
Neutral13.0%
Negative47.4%

SleepSpace

All ratings858 ratings
Positive78.7%
Neutral7.1%
Negative14.2%
Written reviews214 reviews
Positive57.0%
Neutral7.9%
Negative35.0%

User reviews

Sleep Cycle

From 31K App Store ratings

What we love

  • 🚀 Accurate sleep tracking
  • 👍 Gentle alarm wakes you up during light sleep
  • 📊 Detailed sleep data and insights
  • 🌙 Soothing sleep aid sounds

Room to improve

  • 🐛 Alarm not always reliable, sometimes doesn't go off
  • 🔋 High battery drain, especially on Apple Watch
  • 💰 Expensive subscription model, limited free features
  • 📉 Inaccurate sleep tracking in some cases

SleepSpace

From 858 App Store ratings

What we love

  • 🚀 Deeper sleep
  • 👍 Easy to use sleep diary
  • 🔒 Integrates with wearables
  • 👍 Helpful sleep coaching
  • 🚀 Improved sleep quality

Room to improve

  • 🐛 Buggy and crashes
  • 🔋 Battery drain
  • 👎 Requires full access to health data
  • 👎 Obnoxious free trial pop-ups
  • 👎 Inaccurate sleep tracking

Bugs and requests

Sleep Cycle

Reported bugs

3 issues
  • App crashes or stops recording sleep randomly
  • Inconsistent time zone handling, causing alarm issues
  • Microphone issues, unable to detect certain sounds

Requested features

4 requests
  • Ability to edit sleep data and notes
  • Nap tracking and power nap functionality
  • More customization options for alarms and sleep aid
  • Improved integration with Apple Health and other devices

SleepSpace

Reported bugs

4 issues
  • Frequent crashes
  • Unreliable sleep data
  • Connectivity issues with Apple Watch
  • Notifications not working as expected

Requested features

5 requests
  • Fade in/out for sounds
  • Offline mode support
  • More customization options
  • Better integration with other wearables
  • Improved sleep analysis and reporting

In-app purchases

9 purchases

Sleep Cycle

Subscriptions9
  • Sleep Cycle Premium$2.991 Month
  • Premium1 Month trial$9.991 Year
  • Premium1 Month trial$11.991 Year
Show 6 more
  • Premium1 Month trial$19.991 Year
  • Sleep Cycle Premium$19.991 Year
  • Premium1 Month trial$29.991 Year
  • Premium1 Month trial$34.991 Year
  • Premium: Unlock all features$39.991 Year
  • Sleep Cycle Premium7 Days trial2 variants$57.991 Year
13 purchases

SleepSpace

Subscriptions10
  • Premium Monthly Subscription1 Month trial$6.991 Month
  • Legacy Dave Asprey Monthly1 Month trial$6.991 Month
  • Premium Monthly Subscription1 Year trial$12.991 Month
Show 7 more
  • Premium Monthly Subscription1 Month trial$12.991 Month
  • Premium Monthly Subscription7 Days trial$12.991 Month
  • Premium Yearly Subscription1 Year trial2 variants$39.991 Year
  • Legacy Dave Asprey Yearly1 Month trial$49.991 Year
  • Premium Yearly Subscription7 Days trial$79.001 Year
  • Premium Yearly Subscription1 Month trial$79.001 Year
  • Premium Yearly Subscription1 Year trial$79.001 Year
One-time3
  • Sage Rader Inceptions$19.99
  • Lifetime SleepSpace Premium$199.99
  • Dave Asprey Lifetime$199.99

Questions

Is Sleep Cycle free?
Sleep Cycle is free to download, with in-app purchases available.
Is SleepSpace free?
SleepSpace is free to download, with in-app purchases available.
Which has better reviews, Sleep Cycle or SleepSpace?
Sleep Cycle is rated higher. Sleep Cycle averages 4.7 out of 5 from 31K ratings, while SleepSpace averages 4.2 from 858 ratings.
Do Sleep Cycle or SleepSpace have ads?
Neither Sleep Cycle nor SleepSpace shows ads.
Which is updated more often, Sleep Cycle or SleepSpace?
Sleep Cycle ships an update weekly, and SleepSpace weekly. Most recently, Sleep Cycle was updated on October 31, 2026 and SleepSpace on October 29, 2026.

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