Circadian: Your Natural Rhythm

Name: Circadian: Your Natural Rhythm
Rating: 4.14 (874 reviews)
Author: Natural Cycles

By: Natural Cycles

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

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:

7.3.1 Last updated: 2026-04-09

Version code:

224

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:

62.09MB

Email:

su*****@circadian.life

URLs:

Website ,Privacy policy

Full description:

Source:

Google Play Store

Data ingested on:

2026-06-04

Compare stats and ranking:

Ranking

# 163,234 ▼ 490

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

Since the latest update, the app is behaving really odd. Even when I only configure notifications, an alarm is shown and I must open the app to cancel it. Sometimes two alarms get setup for the same time (1 minute separated). The app won't show the notification above blocked screen anymore and it forces me to unblock the phone and open the app every time. Not sure if it's the app itself or the fact that I updated to Android 16 recently. But it became really annoying. Hope you can fix it.