Comparison

SleepStream 2 vs myCircadianClock

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

Head to head
About

SleepStream 2

This app offers a comprehensive suite of tools to help users relax, sleep better, and manage stress. It combines calming sounds, soothing melodies, brainwave programs, and visualizations to create a deeply relaxing experience.

Highlights
  • Calming sounds and melodies
  • Effective brainwave programs
  • Beautiful visualizations
  • Guided voice sessions
  • Professionally mastered audio
  • Downloadable content
Features
Read full description

NEWS: SLEEPSTREAM 2 PRO IS NOW ON SALE FOR $2.99 SleepStream 2 is an advanced sleep inducer and relaxation aid. It helps you leave your busy day behind with a rich selection of calming sounds, soothing melodies, effective brainwave programs, and beautiful visualizations. “If you’re looking for a new way to combat insomnia, or even looking to relax more at the end of a busy day, SleepStream 2 is a viable, unique option.” 148Apps.com “A good sleep is one of my very favorite things to do, and when I’m denied it for whatever reason, I’m not a happy man. On those occasions recently, SleepStream 2 has been there to help me out, and it has done so admirably.” iPhoneFreak.com “SleepStream 2 is the best meditative app out there because it includes guided voice sessions, music, background sounds, binaural beats and visualizations, all in one app. While the configuration procedures of similar applications can leave you frustrated and wide awake, Sleepstream’s intuitive interface allows you to drift off in a moment without a care...” App Store reviewer Do you feel that the stress of everyday life deprives you of your ability to focus, relax, sleep - in short, affects your overall well being? With little time for true relaxation, quality of sleep can be adversely affected which is why SleepStream 2 is such a useful aid for those with stress in their lives. Developed in conjunction with sleep and relaxation experts, hypnotherapists and audio professionals, SleepStream 2 plays the most soothing sounds from nature, gentle audio atmospheres, binaural beats, music and guided voice tracks. SleepStream 2 is perfect for: • Sleep induction • Relaxation • Power naps • Meditation • Noise masking • Concentration • Enjoyment • Tinnitus relief SleepStream 2 Includes: • 50+ stunning background sounds • Calming melodies • 28 effective brainwave programs for sleep, meditation and learning • Breathtaking visualizations • Download section with additional sounds, music, guided voice sessions and visualizations Main features: • Stunning Sound Quality All the sounds in SleepStream 2 are professionally mastered. Sounds of deep, rich drones, calming ocean waves, gentle forest rain and distant seagulls - to name a few - will be your first class journey into a deeply relaxed state. • Overlays and Guided Voice Sessions New in SleepStream 2 is the ability to mix background sounds with overlays - for example, guided meditations or music. SleepStream 2 comes with two superb music collections: 'Soft piano pieces' and 'Deepspace Ambient'. Additional material is available for purchase from the download section! • Breathtaking Visualizations SleepStream 2 gives you the complete getaway with scenic pictures and video loops to view while listening to the audio programs; drift into a world of relaxation. • Brainwave Programs SleepStream 2 offers specially designed binaural beats that can be integrated into the sound experience. Binaural beats stimulate the brain’s activity associated with states such as relaxation, sleep and focus. • Unique Audio Engine and Sound Generators Our audio engine randomly combines hundreds of sounds, giving you a new experience every time! Mix background sounds, overlays and binaural beats in any combination! • Designed for Power Naps! SleepStream's timer function makes it easy to enjoy power naps! Just engage the timer and alarm, and SleepStream will gently wake you after your session has ended. • In-app Download Section Want more? Get audio, visualizations, binaural beats and guided voice sessions from the download section. New material is constantly being added! • Full Multitasking & Retina Support

About

myCircadianClock

This app aids research studies by tracking diet, exercise, and sleep patterns to understand their impact on health. It allows users to log food intake, sleep times, physical activity, and health metrics, with medication reminders and HealthKit integration.

Highlights
  • Log food and drink intake with camera
  • Record sleep times
  • Log physical activity
  • Monitor health parameters
  • Medication reminders
  • Integrates with HealthKit
Features
Read full description

This app is for use in research studies examining how diet, exercise and sleep affect health and healing. Our body contains circadian (circa – approximately and dian – day) or 24 h clocks that determines the time to sleep, feel hungry or get ready for physical activity. Research studies run in different locations are trying to understand the interaction between “how much” and “when” we sleep, eat or exercise for better health. You need an activation code from these research studies to download and use the app. Following are the key features: - Camera function to snap picture of everything you eat or drink - Sleep tab to record time to bed and time of waking up - Exercise tab to log physical activity - Personalized food menu - Health tab to log and monitor health parameters - Medication reminders - Feedback with the research coordinator - Integrated healthkit framework to track your health information.

Screenshots

SleepStream 24 screens
myCircadianClock4 screens

Verdict

The call

The clearest difference is review sentiment: SleepStream 2 at 81% against myCircadianClock's 19%. SleepStream 2 also leads on rating (3.8 vs 2.3) and iOS requirement (8.0 vs 15.6). myCircadianClock's advantage is in-app purchases (none vs 10) and update cadence (monthly vs every 2 months). On price, ads 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. SleepStream 2 sells 10 one-off in-app purchases. myCircadianClock asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

SleepStream 2 holds the better App Store score, 3.8 against 2.3. That said, the two scores are not equally well evidenced: myCircadianClock has 251 ratings behind it against 33, so its average is the more settled of the two. Written reviews point the same way: 81% of SleepStream 2's written reviews are positive against 19% of myCircadianClock's.

UpkeepUpdate frequency

SleepStream 2 ships an update every 2 months, myCircadianClock monthly. The most recent releases landed on October 19, 2026 and October 17, 2026 respectively.

Scorecard7 real differences · 3 level
SleepStream 2 versus myCircadianClock: the parameters behind the verdict, then further details
ParameterSleepStream 2myCircadianClock
PriceFreeFree
Rating3.8 (33 ratings) — better2.3 (251 ratings)
Positive reviews81.5% of reviews — better19.1% of reviews
Number of ratings33251 — better
Update frequencyEvery 2 monthsMonthly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS8.0 — better15.6
Further details — not scored
Size31 MB56 MB
Age rating12+4+
DeveloperExplosive AppsTHE SALK INSTITUTE FOR BIOLOGICAL STUDIES, SAN DIEGO, CALIFORNIA

Customer experience

SleepStream 2

All ratings33 ratings
Positive66.7%
Neutral15.2%
Negative18.2%
Written reviews205 reviews
Positive81.5%
Neutral2.9%
Negative15.6%

myCircadianClock

All ratings251 ratings
Positive23.1%
Neutral11.2%
Negative65.7%
Written reviews183 reviews
Positive19.1%
Neutral14.2%
Negative66.7%

User reviews

SleepStream 2

From 33 App Store ratings

What we love

  • 🚀 Great app
  • 👍 Relaxing sounds
  • 👍 Helps with sleep and focus
  • 👍 Useful for meditation
  • 👍 Customizable options

Room to improve

  • 🐛 Crashes and glitches
  • 🐛 Deleted purchased content
  • 🔋 Drains battery
  • 👎 Confusing interface changes
  • 👎 Aggressive ads and upsells

myCircadianClock

From 251 App Store ratings

What we love

  • 🚀 Easy to use
  • 💡 Contributes to research
  • 👍 Helpful for tracking health
  • 🚀 Simple and effective

Room to improve

  • 🐛 Buggy and glitchy
  • 🐛 Crashes frequently
  • 🐛 Data loss issues
  • 🐛 Slow and unresponsive
  • 🐛 Clunky and unintuitive UI

Bugs and requests

SleepStream 2

Reported bugs

4 issues
  • App crashes on launch
  • Purchased content disappears
  • Binaural beats not functioning properly
  • Timer issues causing sounds to stop prematurely

Requested features

5 requests
  • Add more sound options
  • Improve binaural beats quality
  • Allow layering of sounds
  • Add timer to start sounds at a specific time
  • Improve syncing of purchased content

myCircadianClock

Reported bugs

5 issues
  • Login/registration issues
  • Incorrect sleep time recording
  • Inability to log food/activity retrospectively
  • Pending data not uploading
  • Notification issues

Requested features

5 requests
  • Ability to edit/delete entries
  • Better data syncing and backup
  • Integration with Apple Health
  • More customization options
  • Improved sleep tracking

In-app purchases

10 purchases

SleepStream 2

One-time10
  • Binaural Beats Pack$0.99
  • Sound Pack$0.99
  • Music Spa$0.99
Show 7 more
  • Guided Relaxation$0.99
  • Instant Energy$0.99
  • Pre-sleep Meditation$0.99
  • Thunderstorm HD$0.99
  • Lucid Dreaming Binaural Beat$1.99
  • Anxiety Reducing Binaural Beats$1.99
  • Sleep Phase Follower$1.99
None

myCircadianClock

No in-app purchases

Questions

Is SleepStream 2 free?
SleepStream 2 is free to download, with in-app purchases available.
Is myCircadianClock free?
myCircadianClock is free to download, with no in-app purchases.
Which has better reviews, SleepStream 2 or myCircadianClock?
SleepStream 2 is rated higher. SleepStream 2 averages 3.8 out of 5 from 33 ratings, while myCircadianClock averages 2.3 from 251 ratings.
Do SleepStream 2 or myCircadianClock have ads?
Neither SleepStream 2 nor myCircadianClock shows ads.
Which is updated more often, SleepStream 2 or myCircadianClock?
SleepStream 2 ships an update every 2 months, and myCircadianClock monthly. Most recently, SleepStream 2 was updated on October 19, 2026 and myCircadianClock on October 17, 2026.

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