Sleep Cycle - Sleep Calculator

Sleep Cycle - Sleep Calculator

Alarm Clock

18 ratings
2 reviews
Free
In-App PurchasesWith Ads

Details

  • Released
  • Updated
  • March 3, 2021
  • July 2, 2026

Features

Sleep Cycle - Sleep Calculator screenshot #1 for iPhone
Sleep Cycle - Sleep Calculator screenshot #2 for iPhone
Sleep Cycle - Sleep Calculator screenshot #3 for iPhone
Sleep Cycle - Sleep Calculator screenshot #4 for iPhone
Sleep Cycle - Sleep Calculator screenshot #5 for iPhone
Sleep Cycle - Sleep Calculator screenshot #6 for iPhone
iphone
ipad
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About

This alarm clock app helps you wake up feeling refreshed by analyzing your sleep cycles. It uses natural sounds to gently rouse you at the optimal moment, ensuring a more energized start to your day.

Sleep cycle analysis
Smart alarm clock
Natural wake-up sounds
Sleep time calculation
Light and dark themes
Multiple alarm sounds
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What's New in Sleep Cycle

2.48

July 2, 2026

- bug fixes

Subscription plans

Monthly Sleep Calculator+

App without ads for one month.

$0.991 Month
14 Days trial
How to cancel Sleep Cycle subscription ⁉️

User reviews

useful !!!

It helps me calculate the time when I need to wake up. I use it unconventionally because you can adjust the duration of the cycles yourself. So, if I need to sleep for 8 hours and 30 minutes, I just check the time I need to wake up. This app really helps me out. What I particularly like is that it’s free, and there’s no need to pay for a subscription—you just watch an ad. Since I only open it once a day to check what time to set my alarm, it’s very convenient. It really helps me save time.
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Does it’s job well

The app dies exactly what it says it does, and it tells you what times you should go to sleep to get multiple levels of sleep quality. Would recommend

Developer apps

FAQ

How does Sleep Cycle calculate when to wake me up?

Sleep Cycle analyzes your sleep patterns to identify your lightest sleep phase within a set wake-up window. It aims to wake you up at the optimal moment to minimize grogginess and maximize alertness.

What kind of sounds does Sleep Cycle use for alarms?

Sleep Cycle offers eight natural sounds to gently wake you, including Bird Song, Birds in the forest, Ambient loop, Gentle piano, Seaside Sounds, Garden, Rapid river, and Kenyan Savannah Grassland.

Can I set Sleep Cycle to go to sleep as well as wake up?

Yes, Sleep Cycle allows you to set both your desired wake-up time and your target sleep time, helping you manage your entire sleep schedule.

What are the subscription options for Sleep Cycle?

Sleep Cycle offers a Monthly subscription for $0.99/month and an Annual subscription for $7.99/year, both with a 14-day free trial.

Does Sleep Cycle have ads?

Yes, Sleep Cycle contains advertisements, as indicated by the 'hasAds' flag.

What devices is Sleep Cycle available on?

Sleep Cycle is available on iPhone and iPad devices.

How often is Sleep Cycle updated?

The latest version of Sleep Cycle is 2.43, and it was last updated on March 3, 2026. This suggests a relatively frequent update cycle.

What is the age rating for Sleep Cycle?

Sleep Cycle has an age rating of 4+, making it suitable for a wide range of users.