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Screenshots

  • Sleep Cycle - Sleep Calculator screenshot 1
  • Sleep Cycle - Sleep Calculator screenshot 2
  • Sleep Cycle - Sleep Calculator screenshot 3
  • Sleep Cycle - Sleep Calculator screenshot 4

About Sleep Cycle - Sleep Calculator

Does your phone alarm wake you up angry, make you mad for the whole day, and sometimes not even go off? Our sleep calculator will help you fall asleep and wake up in the most natural way and help you get your day started full of energy and with a smile on your face. Waking up in the middle of a sleep cycle can leave you groggy and ruin your whole day. Our app helps you find the perfect moment to wake up or fall asleep in order to maximize your sleep and keep you fresh all day. A normal sleep cycle lasts 90 minutes and, using that as a foundation, our app calculates the exact moment when you’re brain and body are ready to awaken. Our app uses natural sounds to slowly bring you out of your sleep cycle and make sure you are wide awake. Once you have selected the sound of your choice, the sound will be played slowly and steadily, increasing in volume, for one minute. There are eight natural sounds you can choose from: - Bird Song - Birds in the forest - Ambient loop - Gentle piano - Seaside Sounds - Garden - Rapid river - Kenyan Savannah Grassland The app allows you to choose: - when to wake up - when to go to sleep - when to wake up if you sleep now You can also set up alarm with the app and browse all "Sleep Time" alarms inside our app. This app is perfect for modern people who often don't get enough sleep. This app allows you to maximize the amount and quality of sleep you get and make sure you are never late (or groggy) to a class or meeting again! Features: - calculates when to wake up and when to sleep to feel great - calculates when to wake up if you are already asleep now - add an alarm by clicking on a time - light and Dark themes - choose from 8 natural sounds - browse all "Sleep Time" alarms inside the app Terms and conditions: https://mysticmobileapps.com/legal/terms/sleepcycle Privacy policy: https://mysticmobileapps.com/legal/privacy/sleepcycle

Ratings & reviews

4.5

19 ratings

5 ★ 74% 4 ★ 16% 3 ★ 5% 2 ★ 0% 1 ★ 5%

What’s new

Version 2.48 · Updated July 2, 2026

- bug fixes

App privacy

The developer, MYSTIC MOBILE APPS LLC, reported these privacy practices to Apple.

Data Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

  • Identifiers: Device ID
  • Usage Data: Product Interaction, Advertising Data
  • Diagnostics: Crash Data, Performance Data

Data Linked to You

The following data, which may be collected and linked to your identity, may be used for the following purposes:

  • Identifiers: Device ID
  • Usage Data: Product Interaction, Advertising Data
  • Diagnostics: Performance Data

Used for: Third-Party Advertising, Analytics

Data Not Linked to You

The following data, which may be collected but is not linked to your identity, may be used for the following purposes:

  • Diagnostics: Crash Data

Used for: Third-Party Advertising, Analytics

Alternatives to Sleep Cycle - Sleep Calculator

Looking for apps like Sleep Cycle - Sleep Calculator? Here are 6 similar apps on the App Store. The highest rated is Sleep Calculator Pro (5.0/5), and all 6 are free to download.

Sleep Cycle - Sleep Calculator vs. alternatives
App Rating Price Last updated
Sleep Cycle - Sleep Calculator 4.5 / 5 (19 ratings) Free July 2, 2026
Sleep Cycle Bedtime Calculator 4.1 / 5 (295) Free Sep 4, 2026
Sleep Time: Cycle Alarm Clock 4.7 / 5 (5,371) Free Jul 24, 2026
Sleep Calculator Pro 5.0 / 5 (76) Free Sep 25, 2026
Sleepzy - Sleep Cycle Tracker 4.3 / 5 (22,371) Free Apr 15, 2025
Sleep Science Alarm Clock 4.4 / 5 (477) Free Jan 30, 2026
Sleepwave: Alarm & Tracker 4.7 / 5 (6,589) Free Sep 26, 2026