iPhone Screenshots


Sleep Meister is an alarm application that sets pleasantly timed alarms using a device's built-in accelerometer to sense body motion and sound an alarm when the user is in a light stage of sleep (REM sleep).
It can also be used with HealthKit, and comes with a wide variety of functions, such as automatic tweets while sleeping, recording sleep talking (sounds), a snooze function to stop the user from falling asleep after waking up, and a music player that automatically stops when the user falls asleep.

Wake up to a more pleasant morning!

《 Functions and Features 》
- Compatible with iOS 11.
- Optimized for iPhone X Super Retina Display.
- Optimized for iPhone 8 and iPhone 8 Plus Retina HD Display.
- HealthKit access.
- Records your sleep cycles.
- Sounds an alarm during REM sleep.
- Automatically tweets.
- Recording your sleep talking.
- Music player that automatically stops when you fell asleep.
- 3D Touch.
- Touch ID / Face ID.

《 URL Scheme 》

《 Difference between free and paid versions 》
- No advertisements in the paid version.

What's New

Version 1.15.27

- Bug fixes.

Ratings and Reviews

4.5 out of 5

169 Ratings

169 Ratings

(Updated) FANTASTIC, but -

DJ at East Coast, USA

I LOVE ❤️ this app. It is so useful. I have notoriously bad sleep habits, & this app has improved my sleep & temperament Greatly. However, there seems to be issues periodically maybe when Apple updates their iOs, as just happened. As I am experiencing now, past reviewers have had the app crash in the 3:00 hour which stops all functions. I will keep adjusting various iPhone settings until (I trust) the developers get the bugs 🐞🐞 out again. Otherwise very helpful app. My sleep is not the same without it. Contact form for developer is 403 & 404 error.

Update: I have solved the couple issues I have had. App works best for me if: iPhone is NOT on “Low Power Mode” when plugged in & going to bed. That was a key for me. Also probably best to NOT use “Do Not Disturb” as Sleep Alarm seems to be a notification. If you can, Disable your other least important notifications individually before bed (takes me approx 1 minute) but obviously not stuff like weather push notifications in tornado season for example. I think this app is fairly accurate (& for Free!!) & the insight I have received from it is worth a quick phone adjust before bed.

Good alarm/tracker!


I've been using this for months-- maybe even a year? I love the options for a gradual alarm, that you can decide how large of a window to wake you within, and that if it's working properly it'll actually wake you when you're in the shallower part of your sleep cycle. Sometimes it crashes and then it doesn't go off, but I've never been late for work because of it and I used to sleep through alarms all the time when I was younger. I'd definitely recommend it, just make sure you set a recurring back up alarm on your actual phone (or some other device) for the latest you're comfortable waking up for some peace of mind.

Often doesn’t work, no longer using


I used to really like this alarm but it didn’t go off today or Friday so I’m done. Sometimes if it doesn’t detect enough motion it aborts and turns off. It also doesn’t turn off when I hit the off button, I have to close out of the app in the morning. They also got rid of my favorite morning sound when I updated last. I am a light sleeper so after that my only option was to use vibrate but I used to like the light bird noises and music. It also doesn’t always sync the sleep data to my iPhone SE. The data it takes often is inaccurate (I wake up during the night but it says I’m still asleep for example) and the ratings for sleep are always too high. I switched to ‘good morning‘ which has all the features I want (sound levels, buttons work, quality data) and it’s way better than this app.


Naoya Araki
29.8 MB
Health & Fitness
Requires iOS 10.3 or later. Compatible with iPhone, iPad, and iPod touch.
English, Japanese
Age Rating
Rated 4+
© 2018 Amuser Labo


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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