Circadian: Your Natural Rhythm

Name: Circadian: Your Natural Rhythm
Rating: 4.12 (887 reviews)
Author: Natural Cycles

By: Natural Cycles App

Natural cycles, biorhythm & bedtime calculator for better sleep, energy & health

Overview

Google Play Store

Downloads

191,412 ▲ 610

Data as of 2026-09-05

Rating:

4.12

(887)

Version:

7.4.3

Last updated: 2026-08-31

Ranking

#162,417 ▼ 77

Overall

Features & Capabilities

Circadian: Your Natural Rhythm is a cutting-edge Chrome extension designed to help you align with your body's natural cycles and biorhythms for improved sleep, balanced energy, and overall wellness. By focusing on natural diurnal patterns—such as dawn, sunrise, solar noon, and sunset—the app provides customized bedtime calculations and reminders that promote consistent sleep and eating schedules.

This innovative tool also supports intermittent fasting aligned with daylight hours, helping you regulate metabolism and blood sugar. Built on Nobel Prize-winning chronobiology research, Circadian offers deep insights into melatonin, cortisol, and vitamin D production along with practical alerts to optimize medication, exercise, and meal timing. Embrace natural rhythms and experience healthier living with Circadian's intuitive, nature-driven guidance.

User Growth & Download Statistics

App Education

By:

Downloads:

Rating:

Version:

7.4.3 Last updated: 2026-08-31

Version code:

256

Creation date:

2020-10-05

Publisher country:

Permissions:

android.permission.ACCESS_COARSE_LOCATION Very high risk
android.permission.ACCESS_FINE_LOCATION Very high risk
android.permission.READ_EXTERNAL_STORAGE High risk
android.permission.SYSTEM_ALERT_WINDOW High risk
android.permission.WRITE_EXTERNAL_STORAGE High risk
android.permission.ACCESS_NOTIFICATION_POLICY Moderate risk
android.permission.DISABLE_KEYGUARD Moderate risk
android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS Moderate risk
android.permission.USE_FULL_SCREEN_INTENT Moderate risk
com.google.android.gms.permission.AD_ID Moderate risk

Size:

47.35MB

Email:

su*****@circadian.life

URLs:

Website ,Privacy policy

Full description:

Source:

Google Play Store

Data ingested on:

2026-09-05

Compare stats and ranking:

Ranking

# 162,417 ▼ 77

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Android app. Please use these information below to contact the Android app developer.

Developed by:

Natural Cycles

Google Play Store

https://play.google.com/store/apps/details?id=com.crestcoder.circadian

Email:

su*****@circadian.life

Website:

https://circadian.life

User Reviews

Users praise Circadian for helping align rhythms, useful alarms/reminders, and free circadian information, with helpful support. However, recurrent reliability problems (bugs, crashes, and resets), timing inaccuracies, notification failures, upgrade flow frustrations, and some UX issues limit the experience. The app shows strong conceptual value but significant stability and usability drawbacks across reviews.

Pros

Helps align wake-sleep with circadian rhythm and reduces fatigue.
Alarm reminders and morning alarms with sunset timers that adapt to changing wake times.
Provides useful circadian rhythm information and is free to use.
Allows saving important preferences and personalized reminders.
Support appears responsive and helpful when contacted.

Cons

Frequent bugs, crashes, and alarms/settings resetting unexpectedly.
Time and sunrise calculations are often inaccurate or not syncing properly with location.
Notifications stop working or fail to trigger for some users.
Premium/upgrade flow can be blocked or confusing (issues upgrading to basic or using premium).
UX/UI issues and confusing navigation (not always user-friendly).

Recent reviews

During the trial, everything worked perfectly. So I signed up for the annual basic plan and now things don't work as good. There are 2 alarms that go off (sunrise and daybreak) before the wake up alarm. I can't seem to figure out how to change these as I only have "wake up" in the list. I also have the birds ringtone selected but that's not what plays when the alarm goes off (it did during the trial). Which is frustrating since the ringtones drove my decision in purchasing the plan.