Circadian: Your Natural Rhythm APK
App information
Version 7.0.0 (#174)
Updated 2025-02-13
APK Size 58.9 MB
Requires Android Android 6.0+ (Marshmallow)
Offered by Natural Cycles
Category Free Health & Fitness App
App id com.crestcoder.circadian
Developer's notes Sunrise & sunset time: Optimize biorhythms, melatonin, natural cycles & health
Screenshot
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Table of contents
Latest updates
What's new in Circadian: Your Natural Rhythm 7.0.0
We're actively working to improve Circadian.
Here's to optimising our circadian rhythms and lifestyle one step at a time. Feel free to contact us at support@circadian.life if you have any issues, feedback, suggestions or questions.
Mind your rhythm, mind your light ☀️
Team Circadian
Editor's review
Download the latest Circadian: Your Natural Rhythm application, version 7.0.0, compatible with Windows 10/11 (using emulators such as Bluestacks), Android devices. This free Health & Fitness app is developed by Natural Cycles and is easy to download and install.
Previous versions, including 7.0.0, 5.0.0, 4.1.4, are also available. If you need help or have any problems, please let us know.
Description
Ready for living with more energy and focus?
Keen to have better sleep, improve mood and body composition?
How about balancing your hormones naturally?
The answer? Do your daily activities at the optimal time for your body.
Anchor your life to sunrise and sunset to optimize your circadian rhythm.
▌Circadian rhythm, biorhythms & chronobiology: the science🔬
Your body's circadian rhythms are 24-hour cycles of biological, hormonal, and behavioural patterns. This biorhythm modulates a wide array of physiological processes, including your hormones (i.e. melatonin), sleep, hunger, and metabolism, ultimately regulating body weight, performance, mood and susceptibility to disease. As such, your circadian rhythm has profound implications for well-being and longevity.
The 2017 Nobel prize in Medicine was given for research on circadian rhythms. Circadian clocks in almost all of your cells govern cellular functioning. When you disrupt your circadian clocks, chaos, inflammation, and disease are consequences.
Circadian is your app for applying circadian rhythms and living more naturally. Circadian uses local times (i.e. sunrise and sunset) plus user settings to calculate your circadian rhythm, also known as biorhythm. Optimize light, exercise and food timing to finally live better. Harmonize your life with the natural cycles, and let yourself be surprised!
▌Set reminders & alarms for critical circadian events to live well 🔔
In line with natural cycles, like light & dark and seasonal changes, Circadian provides reminders & alarms to operate on your optimal biorhythm. Start syncing your sleep cycle with nature and be active when you are meant to. Use Circadian as a daily schedule to live well. Set reminders for:
○ daybreak, sunrise, solar noon, sunset and nightfall
○ ultraviolet light rise and fall (UVA and UVB)
○ sleep and wake times
○ natural eating and fasting
○ morning and peak exercise
○ peak cognition
▌Adjust your sleep with the seasons💤
Your biorhythms govern daily functioning, while seasonal rhythms affect longer-term behavioural & metabolic changes. Circadian adjusts your sleep duration dynamically based on your location. Let your biorhythm become the schedule that keeps you in sync with natural cycles, balances hormones (ie cortisol & melatonin), and leads to better sleep. Your internal natural cycles & hormonal ebb & tides will be harmonized as a by-product.
▌Include fasting in your daily schedule 🍴
Eating and fasting are important cues for your biorhythms. Aligning your eating time with circadian rhythms is essential to balancing hormones, lowering inflammation, preventing/reversing disease and better sleep.
▌Understand and learn with Circadian 💡
Why is daylight (via UVA light) the first step to make melatonin?
Why is sunshine essential for your hormonal balance and health?
Why is an indoor lifestyle an on-switch for stress hormones?
Find these and many other answers with Circadian!
The learn section provides carefully curated in-depth content, practical suggestions & many surprises.
Learn about circadian rhythm, light (sunlight, UVA, UVB, red/infrared & artificial light), melatonin, sleep, grounding & much more.
▌Still doubtful? ☝️
Consider that circadian disruptions are linked to almost every modern disease, from diabetes to cancer. Don't believe it? Search: "shift work" or "circadian rhythm" plus a disease name.
▌What does Circadian cost? 💵
Circadian offers a 7-day free trial + a limited free version after that. Prices for the full version vary based on the country/region.
💚 See sunrise & sunset, bathe in more daylight, make the nights dark again, build a strong sleep / natural cycle and experience harmony with your environment.
⚡ Live well and achieve holistic health by optimizing your hormones via circadian rhythms.
🌅 Download Circadian now!
App permissions
Circadian: Your Natural Rhythm 7.0.0 APK requires following permissions:
Allows applications to open network sockets.
Allows an app to access approximate location.
Allows an app to access precise location.
Permission an application must hold in order to use ACTION_REQUEST_IGNORE_BATTERY_OPTIMIZATIONS.
Allows access to the vibrator.
Allows an application to receive the ACTION_BOOT_COMPLETED that is broadcast after the system finishes booting.
Allows using PowerManager WakeLocks to keep processor from sleeping or screen from dimming.
Allows applications to disable the keyguard if it is not secure.
Allows an application to change the Z-order of tasks.
Allows an app to create windows using the type TYPE_APPLICATION_OVERLAY, shown on top of all other apps.
Allows applications to access information about networks.
Allows applications to access information about Wi-Fi networks.
Allows an application to write to external storage.
Allows an application to read from external storage.
Marker permission for applications that wish to access notification policy.
Ratings and Reviews
Rating: 4.4/5 based on 5+ reviews
(*) is required
5 ★ I love this app! Such great info and super hand features. I'm loving what I'm learning and all the settings I can pick to make my circle for me! ❤
1 ★ It doesnot open,keeps saying we cannot connect offline,well...I am not offline also tried proxies,nothing worked
5 ★ Great app, lots of interesting info to learn about circadian rhythms & helpful to know when to do what in the day🙂
4 ★ Nice app. One thing I'm missing is the ability to set the days of the week the alarm needs to go off.
3 ★ Regarding my pervious review, I've removed it as the developer has offered to refund the 30% and will up to 5 stars as the app is brilliant and I love it.
3 ★ Slow and battery hungry. And, for some reason I'm being charged more than advertised in-app. Other than that, it's a nice tool. Possibly the one with the best usability. You can easily set push notifications and alarms (just one in the trial) for various daily events optionally synched to sunrise (and sunset). Has a nice introduction and comes with a plethora of (clutered) information resources on the matter. Unfortunately it feels lacking in options and customization, even after subscribing.
1 ★ would've give 5 stars but it is so expensive this all should be free or cheaper
3 ★ Sunrise time not updating as expected App is great, really love it. But I don't why it does not seem to update sunrise time. According to websites and other apps, should have been 6.41 yesterday, and Circadian said 6.40. Today should have been 6.42, and it kept 6.40...So, while other apps/sites are moving all in the same way daily, Circadian is not. Of course I am with full internet, so should be updating automatically...Any help on that?
5 ★ The best and most useful app ever... congratulations for the great idea ,there was one app similar to this one but the dev abandoned it..you have great opportunities now to help people while getting some money also for extra features..I enjoyed the idea of the one time payment , subscriptions are silly for people trying to be economically free and prosperous..well keep up the good work . But sorry to say I v just seen the price is too high and there is a notification limit...bad idea.
4 ★ Had trouble at first with the subscription, but it seems to be fixed. Great app, but still needs further development. First, the startup splash screen is a little annoying. It would be nice if that were optional. What I would like to see even more is a widget showing all the different parameters in the circular map found in the app. Would make an excellent widget to keep track of all the parameters. And highlight and specify by name the parameters that are active at that point in time.
5 ★ Great app, lots of helpful information and even on the basic let's you start resetting to your natural rhythm. Customer service is fantastic, thanks to Bastian for your fast response to my emails. I've signed up for the lifetime option after two full days, I am that impressed! Great app and hopefully will continue to get even better.
5 ★ This is a great app. I am already 100% in on circadian rhythm hygiene, but struggle mightily explaining the why to others. The learn section is a huge collection of knowledge that simply explains many important concepts with references.
3 ★ It's not at all a very useful app without subscription. Only 1 notification and it does not update the sunrise time.
5 ★ Excellent app, with intuitive time schedules in accordance with one's current location. Also extremely good aftercare the one time I had an issue.
5 ★ Great app. Recommended in my wellbeing work shops for better sleep. Well thought through and complete. Nice work guys.
Previous versions
Circadian: Your Natural Rhythm 7.0.0 APK for Windows (#174, 58.9 MB)
Circadian: Your Natural Rhythm 5.0.0 APK for Windows (#161, 50.6 MB)
Circadian: Your Natural Rhythm 4.1.4 APK for Windows (#97, 26.4 MB)
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