what matters most
set reminders for critical circadian events essential for health and vitality
align your lifestyle with the light and dark cycles at your location
learn more about the science and how to apply it to your daily life
Michael Twyman, MD, MBA
Cardiologist at drtwyman.com, Photobiomodulation Expert, Biohacker
Circadian is the best app to help people track the time of day that they should be exposed to bright light, eating, exercising, and doing thought-provoking work. If you want to have a healthy heart and colony of mitochondria, then you have to get this app to help you manage your circadian rhythms.
Joshua Rosenthal, MD
Board Certified Sleep Physician at Quantum Life Wellness, Regenerative Medicine Specialist
Whatever wellness journey you are on, you must align your circadian biology to favor optimal health. Changing micro-routines usually requires a lot of reminders of “when” to do certain tasks. This is why I recommend the Circadian app, so that you have a virtual assistant telling you what to do when and why.
Co-Founder and Head of Science at CeraThrive, Podcast Host
This is the best biohacking app I have used. Really user friendly with tons of information. I will be recommending it to all my brain health clients and anyone that wants to improve their health and learn more about circadian rhythms and chronobiology. Highly recommended.
CEO of Light Vitality Group, Lighting Designer, Researcher
As a lighting professional, I have found the Circadian App extremely instrumental in supporting both my work and my personal lifestyle. I am thrilled to be able to offer it to my clients, communities, and to use it personally. I very much look forward to seeing how community health trends improve when Circadian becomes a household staple.
Eduard de Wilde
Not many people are aware that their circadian rhythm has a profound impact on their health. The Circadian app gives you powerful insights and helps you to align your lifestyle to your rhythm. The result is that you sleep better and have more energy to perform in life!
Thomas L. Hinton
Sleep and Performance Coach, CEO at Circadian Health Systems
Maintaining a healthy and consistent sleep schedule is crucial for my clients and me. The Circadian app does just that and I love it. Scheduled reminders for my food intake, sleep/wake cycle and environmental cues help me stay on track. I highly recommend this app and will be introducing this into my sleep performance programs!
Sleep Expert, Podcaster, Founder at Sleep is a skill
The circadian app is unlike any other app I’ve found in that it helps train you to live within the rhythms of nature in our busy modern society. The implications of that behavioral shift on your sleep and health can be profound.
Difficulty falling or staying asleep and excessive sleepiness is often due to chronic circadian disruption.1,2
Circadian disruption is strongly associated with insulin resistance and obesity.3,4,5
Aligning with natural rhythms
and increasing exposure to sunlight boosts cellular energy production.6,7,8,9
Circadian rhythm and light disturbances are a major hallmark
of serious mood disorders.10,11
Circadian rhythms play a direct role in diseases of ageing and ageing itself.12,13,14
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Disruptions of circadian rhythms are linked to almost every modern disease from diabetes to cancer.
Don’t believe it?
Search: “shift work” or “circadian rhythm” plus the name of a disease.
- Your body’s circadian rhythms are 24-hour cycles of biological, hormonal, and behavioural patterns. These rhythms modulate a wide array of physiological processes, including the body’s production of hormones that regulate sleep, hunger, and metabolism. Ultimately, these rhythms regulate your body weight, performance, mood, and susceptibility to disease.
Life-changing app. I have suffered from insomnia and fatigue for many years. The greatest revelation to me was the effects of blue light on sleep, mood etc. I now look forward to waking up with the sun instead of lying in bed, looking at my phone for hours before I finally get up. It has truly changed my life for the better – highly recommend.
George - United Kingdom
Yields very positive results. I’ve lost 50 lbs, so I’m in top shape. The most important aspect of this app IMO is the fasting reminder, the second one is that living in sync with the sun’s cycle helps establish a natural/unforced routine that gives you energy and great mood.
Christopher - United States
Brilliant app! So not only is the app laid out in a clear and precise way, with colour coding, but all of the features have massively helped me feel more energised throughout the day!
Lisa - United Kingdom
I am noticing a REALLY huge difference with my hormones, and specifically with my monthly cycle. Following the app’s suggestions I’ve had no pms symptoms, very little fatigue, and no cramping. I’ve had AWFUL cycles for years. This is a huge deal to be healing and feeling so much better in such a short amount of time.
Adrienne - United States
The best app and service I have had and have purchased over 300 apps over the years. The first time I have ever done a rating. It is a game changer. You will be very pleased to use it.
Greg - Australia
Wow, this app is just amazing❣️ I never came across an app like this before.It is loaded with facts and info which supports and motivates me to align with my natural bioclock. It truly changed my perception and my habits (still in process😂).
Prashanth - India
This is an app I was looking for, it’s quite new, it does exactly what it’s purposed to: live a more natural life, based on the sun and our body circadian rhythm. It increases mood, sleep quality, etc. Having reminders to go outside too and enjoy fresh air, sun beams at the right times.
Chris - Belgium
The amount of information is massive and well researched. It is an excellent resource for optimizing circadian rhythm. It’s user friendly and helpful in sticking to an eating and exercising schedule that works best with nature. Love it!
Tania - United States