Circadian: Your Natural Rhythm

Natural Cycles

In-app purchases

About this app

Ready for a lifestyle that prioritises health and wellness?
Ready for living with more energy and focus?
Keen to have better sleep, improve mood and body composition?
How about balancing your hormones naturally (via light and intermittent fasting)?

The answer? Do your daily activities at the optimal time for your body.
Anchor your life to sunrise and sunset to optimise your circadian rhythm and natural cycles.

▌Circadian rhythm, biorhythm & chronobiology: the science🔬

Your body's circadian rhythm 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 natural alarm clock. 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!

▌An alarm clock for critical circadian events to live well 🔔
In line with natural cycles, like light & dark and the seasons, Circadian acts as an alarm clock for your optimal biorhythm. Start syncing your sleep cycle with nature and be active when you are meant to. Set reminders & alarms for:
○ daybreak, sunrise, solar noon, sunset and nightfall
○ ultraviolet light rise and fall (UV)
○ 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 the sunshine hours at your location. Let your biorhythm become the alarm clock that keeps you in sync with natural cycles, balances hormones (ie cortisol & melatonin), and leads to better sleep.

▌Include fasting in your daily schedule 🍴
Eating and fasting are important cues for your biorhythm. Aligning your eating time with circadian rhythms is essential to balancing hormones, lowering inflammation, preventing/reversing disease and better sleep. Let light and sunshine be your guide (alarm clock) for eating and fasting.

▌Understand and learn with Circadian 💡
Why you need UV light to make melatonin?
Why is sunshine essential for your hormonal balance and health?
Why should your alarm clock be ideally linked to sunrise?
What fasting times support your circadian rhythm, hormones and sleep?
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 (sunshine, UV, red/infrared & artificial light), melatonin, sleep, natural cycles & 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.

💚 Set your sunrise & sunset alarm clock, bathe in more natural light, make the nights dark again, build strong natural cycles and experience harmony with your environment.
⚡ Light up your day and optimise circadian rhythm, biorhythm, natural cycles and health naturally.
🌅 Download Circadian now!

Ratings and reviews

Update - was emailed promptly about this issue, which is rare these days for apps. They corrected the issue within a few hours of me reaching out. I absolutely LOVE this app and have been using it for years. It really has helpede be more aware of my time spent inside, reminding me to get outside. A+ app and customer service Update erased my plan and settings, and is telling me I now have to pay a one time fee to use all the notifications that I previously used and paid for with my annual plan.

This is a great app if you are looking to align certain activities to daylight over the course of the year. They have also done a good job updating the app to resolve prior issues. When I had a problem with my subscription they responded quickly and rolled out an update to fix it. This is the best app I've found with adjustable sunrise/sunset alarm functionality.

This app is beautiful and highly useful. Bringing our lives into alignment with circadian rhythms requires a significant lifestyle adjustment. Most of the world today lives completely tone deaf to the natural cycles. This app is a tremendous tool for bringing your life back into rhythm. I had some initial technical problems with the app and subscription, but all is straightened out. The team was responsive and figured out what was wrong.

What's new

This version addresses some onboarding and data issues.

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 [e-mail] if you have any issues, feedback, suggestions or questions.

Mind your rhythm, mind your light ☀️
Team Circadian