Sleep Cycle Calculator: Sounds

4K installs
79 ratings
154 monthly active users
$<10K monthly revenue est.
IAP 23% · Ad 77%

Sleep Cycle Calculator: Sounds Summary

Sleep Cycle Calculator: Sounds is a ad-supported, with in-app purchases iOS app in Tools by Phan Nhat Đang. Released in Mar 2023 (3 years ago). It has 79 ratings with a 4.82★ (excellent) average. Based on AppGoblin estimates, it reaches roughly 154 monthly active users and generates around $<10K monthly revenue (23% IAP / 77% ads). Store metadata: updated Feb 22, 2026.

Store info: Last updated on App Store on Feb 22, 2026 .


4.82★

Ratings: 79

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Screenshots

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App Description

Improve Your Sleeping Habits with Sleep Timer: Calculator, Sounds
Main Features:
* Sleep Cycle Calculator: Determine the optimal time to go to sleep based on your desired wake-up time and the 90-minute sleep cycle.
* Sleep Duration Calculator: Calculate the best bedtime and wake-up time based on your desired sleep duration.
* Sleep Sounds: Enjoy a variety of sounds designed to help you fall asleep faster and enjoy a deeper, more restful sleep.

SUBSCRIPTION INFORMATION
This subscription package offers users unlimited access to all app features throughout the subscription period.

• Payment will be charged to iTunes Account at confirmation of purchase.
• Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period.
• Account will be charged for renewal within 24 hours prior to the end of the current period, and identify the cost of the renewal.
• Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase.
• Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable.

Privacy Policy: https://13520178.github.io/sleepcalculator/policy.html
Terms of Use: https://13520178.github.io/sleepcalculator/terms.html

Our app is designed to be user-friendly and easy to use. We are always ready to assist you with any questions or requests. Please feel free to contact us:
- phannhatd@gmail.com