Comparison

Sleep application vs Sleep Meister

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

Head to head
About

Sleep application

This app uses binaural beat technology and flicker noise to help users fall asleep faster and improve concentration and memory. It offers various sound settings to find what works best for individual needs.

Highlights
  • Binaural beat technology
  • Flicker Noise sound
  • Sleep induction
  • Improved concentration
  • Enhanced memory
  • Customizable sound settings
Features
Read full description

--- The Strongest Sleep Induction App --- You can sleep quickly just by listening when you go to bed. We ranked No. 1 in Japan (iPhone and iPad). ●Thank you very much! #1 Top paid app for the iPhone in Japan #1 Top paid app for the iPad in Japan #9 App Store BEST OF 2012 in Japan #3 in 2013 #4 in 2014 #3 in 2015 #13 in 2016 #8 in 2017 ===================================== Reviews from users *The following contents are translations of reviews posted by Japanese users. ===================================== ■ This is the one! Version 3.5 Sept. 15, 2012 My level of concentration has increased! I have better memory too! Now I can sleep well at night! ■ Great!! In studying or at work, I always use this app. I am hooked on it! ■ I can't live without this app! No need to count sheep with this app! I'm out like a light. ■ My insomnia is gone!!! I guess everyone has different results but this app has sure worked to cure my insomnia! ■ Someone with insomnia I had a slight case of insomnia but now all that is gone after listening to this app. ■Explanation of this App 1. When a person hears two different frequencies in their ears, the difference of those frequencies will appear in the brain as one frequency. In this app that principle is used and your brain will be in a state as when you are sleeping. 2. The sound of "Flicker Noise" is known to help balance the autonomic nervous system as it enters the hypothalamus of the brain, which helps relieve pressure on the sympathetic nervous system. Through a combination of the two above methods you will be lead directly and indirectly into a deep sleep. ※ The sound of "Flicker Noise" is the sound parameters of the background environmental sound. How to Use 1. Start the app. 2. Choose your favorite background music. Also, for more effective sounds through the change in settings. Results (sleep / relaxation/ concentration, memory) - The effects of concentrating The mode is for increasing brain activity and raising your level of concentration before doing sports. - The effects of memory This mode will take you a deeper level than the relaxation mode. This mode is recommended for studying or raising your level of memory. ※ The sound which can help each person is slightly different so we suggest that you try different settings to find the sound that best works for you. ※There is no guarantee that the effect will work on everyone. ○This application uses a binaural beat technology, which has been scientifically proven effective. However this method uses only 3db, so based on how sensitive the user is, there may be a gap in benefits received. Even if you did not get results your first time, keep using it every day. You should slowly see better results. ○How to use this application effectively ・Close your eyes, relax and assume a position laying down. ・This application needs to use many low and high frequencies so use high quality headphones not cheap 100 yen ones. ・If your ears start to hurt, please turn down the volume until until the music is barely audible. ○ Our company has an app "3D Eyesight Recovery" to help restore eyesight using stereogram. Stereogram uses the eyesocket muscles resulting in effectively stretching your eyes and it is said that when used before sleeping this app helps you to sleep more soundly. Why not try this wonderful app? ※ You need a special way to see Stereogram, so a little practice is required. The instructions for this are in the app. ※Binaural Beat is a technology which controls the brain waves. For anyone with one of the following problems below, please consult your Physician. ・ For Those with Epilepsy ・ For Those with Heart Problems (especially those with pacemakers) Do not us this app when driving or doing other dangerous work.

About

Sleep Meister

This app monitors your sleep cycles using your device's accelerometer to wake you during your lightest sleep phase. It offers features like sleep talking recording, sleep data visualization, and automatic music player shutdown.

Highlights
  • Sleep cycle monitoring
  • Lightest sleep phase alarm
  • Sleep talking recording
  • Sleep data visualization
  • Automatic music player stop
  • Health app integration
Features
Read full description

Sleep Meister is a sleep aid app that uses the accelerometer sensor built into your device to monitor your body’s movements and sound an alarm when your sleep is at its lightest, letting you wake up refreshed. Sleep Meister integrates with the Health app and is packed with features, recording your sleep talking, manage your sleep data via graphs and lists, post your sleep data on social media platforms, set the music player to automatically turn off when you fall asleep, and much more. Make every morning a refreshing one! [Features] - Compatible with iOS 27. - Integrates with the Health app. (sleep analysis) - Manages your sleep cycles. - Alarm to wake you up when your sleep is at its lightest. - Recording your sleep talking. - Music player that stops automatically when you fall asleep. [Instructions] 1. Open up the settings menu to personalize the app by choosing the alarm sound, snooze length, and more. 2. Set the alarm time and press the START button to begin monitoring your sleep cycles. 3. Refer to Help in the settings menu when choosing where to place your phone. 4. The alarm will sound in the time period you set when the app senses that your sleep is at its lightest. 5. After waking up, slide the slider to the right to stop sleep monitoring. [URL Scheme] sleepmeister: [Differences between the free and paid versions] No advertisements in the paid version

Screenshots

Sleep application3 screens
Sleep Meister4 screens

Verdict

The call

The clearest difference is review sentiment: Sleep application at 100% against Sleep Meister's 70%. Sleep application also leads on rating (5.0 vs 4.7) and device support (3 vs 1). Sleep Meister's advantage is ratings volume (74 vs 4) and chart position (#121 vs unranked). On 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

Sleep application costs $0.99 and Sleep Meister $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Sleep application holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Sleep Meister has 74 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 100% of Sleep application's written reviews are positive against 70% of Sleep Meister's.

UpkeepUpdate frequency

Sleep application ships an update every 2 months, Sleep Meister every 3 months. Both last shipped on October 29, 2026.

Scorecard8 real differences · 3 level
Sleep application versus Sleep Meister: the parameters behind the verdict, then further details
ParameterSleep applicationSleep Meister
Price$0.99 — better$1.99
Rating5.0 (4 ratings) — better4.7 (74 ratings)
Positive reviews100.0% of reviews — better69.9% of reviews
Number of ratings474 — better
Update frequencyEvery 2 months — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
Best chart rank—#121 — better
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS12.0 — better26.0
Further details — not scored
Size61 MB16 MB
Age rating4+4+
Developerkoikoi.bizNaoya Araki

Customer experience

Sleep application

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews34 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Sleep Meister

All ratings74 ratings
Positive91.9%
Neutral5.4%
Negative2.7%
Written reviews113 reviews
Positive69.9%
Neutral13.3%
Negative16.8%

Bugs and requests

Sleep application

Not enough reviews yet to summarise bugs or requests.

Sleep Meister

Reported bugs

30 issues
  • Alarm sometimes doesn't sound
  • App freezes or crashes
  • Inconsistent alarm volume
  • Bluetooth speaker/earphone disconnects
  • Sleep talk recording is inaccurate
Show 25 more
  • Background battery consumption is high
  • App crashes during music selection
  • Cannot return to home screen after starting
  • Alarm sound is too loud
  • Data is not recorded
  • Screen turns black and unresponsive
  • Automatic updates cause alarm to stop
  • Music button not working after update
  • App not functioning in the background
  • Alarm settings reset after update
  • CSV export of action memos has garbled text
  • Alarm does not sound during daylight savings time transition
  • App terminates unexpectedly
  • Alarm volume set to minimum still plays loudly
  • App stops recording data after a few days
  • Cannot import action memos to paid version
  • Music playback issues after update
  • App stops working after a few days
  • Data export to email not working
  • Backup option maxes out at 100 records
  • Alarm volume inconsistent with settings
  • App crashes when tapping 'Statistics' tab
  • Alarm doesn't sound, and no data is recorded
  • App crashes frequently since update
  • Alarm doesn't ring after iOS update

Requested features

29 requests
  • Add Twitter posting functionality
  • Apple Watch app support
  • Bulk delete data option
  • More detailed HealthKit integration
  • Ability to manually add/edit sleep entries
Show 24 more
  • Shortcut app integration for automation
  • Improvement for sleep talk recording accuracy
  • Add repeat alarm settings (e.g., weekdays)
  • Option to return to home screen after starting
  • Add alarm on/off button to home screen
  • Import action memos to paid version
  • Math problem/game to turn off alarm
  • Support for Spotify songs as alarm
  • Ability to use audiobooks/podcasts as alarm
  • Option to view graph mid-session without resetting alarm
  • Download and keep recordings
  • Support for IFTTT/Evernote integration
  • Add option to manually adjust entries
  • Improve daylight savings time handling
  • Support for multiple sleep cycles per day
  • Add option to take short naps (10-20 mins)
  • Improve average calculation in data section
  • Connect with other smart bands
  • Add recurring alarms
  • Add option to manually add sleep time
  • Random song selection from library
  • Option to select specific songs for alarm
  • Improve translation for better clarity
  • Ability to download recordings

In-app purchases

None

Sleep application

No in-app purchases

None

Sleep Meister

No in-app purchases

Questions

Is Sleep application free?
Sleep application costs $0.99, with no in-app purchases.
Is Sleep Meister free?
Sleep Meister costs $1.99, with no in-app purchases.
Which has better reviews, Sleep application or Sleep Meister?
Sleep application is rated higher. Sleep application averages 5.0 out of 5 from 4 ratings, while Sleep Meister averages 4.7 from 74 ratings.
Do Sleep application or Sleep Meister have ads?
Neither Sleep application nor Sleep Meister shows ads.
Which is updated more often, Sleep application or Sleep Meister?
Sleep application ships an update every 2 months, and Sleep Meister every 3 months. Most recently, Sleep application was updated on October 29, 2026 and Sleep Meister on October 29, 2026.

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