MyCircadian tracks sunrise, sunset, UV exposure, vitamin D, and moon phases, while logging sun sessions and offering tools like a lux meter and compass for optimal health.
The sun session timer provides a recommended sun exposure time based on your skin type, clothing, cloud cover, and estimated UV index. This helps build a solar callus and supports vitamin D production but is not a replacement for medical advice. Use the timer for guidance only
Sync with lunar cycles to enhance hormone balance and overall wellness
Easily locate sunrise and sunset directions using the app's compass
Monitor lux levels to support healthy circadian rhythms and mood
Track real-time UV index for precise sun exposure data, beyond typical weather app estimates
Synthesize vitamin D with UVB exposure based on time, season, and location
Creator of MyCircadianApp, Board Certified in Quantum Biology with 14+ years of experience optimizing health, nutrition, and circadian rhythms for modern life.
Scientist, communicator, and innovator in light biology, mitochondrial medicine, and metabolism.
PhD in Biophysics specializing in light biology, quantum and circadian science, integrating ancient wisdom with modern health practices since 2010.
Practicing Optometrist and Quantum Biology Coach, transformed by circadian science, now guiding others in circadian health for lasting change.
Quantum Biology Practitioner and Health Coach, helping clients find lasting health with holistic, circadian-based practices. Founder of BNC community, certified by NASM and Quantum Biology Collective.
Circadian Optimization Coach. Father. Driven by Obsession, Vitality, Circadian Biology, Mother Nature, & Decentralized Medicine.
Alysia, creator of @thesourcejunkie on Instagram, has always been passionate about sunlight and light codes. Inspired by circadian rhythms, she’s excited to help you discover the benefits in your own life.
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Please update your app in the App Store or google play store to the most recent version. UVB is also only available for certain portions of the year for people who live above the 35th latitude. In essence - UVB goes away for certain portions of the year when you live above the 35th latitude, but UVA is available year round.
All apps rely on algorithms based on various weather metrics to estimate things like sunrise, sunset, and UV index. However, these estimates are just that—approximations. When we built MyCircadianApp in 2024, we carefully analyzed the most reliable data sources and integrated what we believed to be the most accurate estimations, ensuring the app synchronizes seamlessly with the natural cycles of light and UV exposure.
There is no app that can accurately estimate your blood levels of storage D3. Other factors such as stress, dehydration, BMI & infections can alter the amount of storage D3 that shows up on a blood test.
Here’s a video that explains how lux impacts your metabolism & ability to sleep - https://youtu.be/AMfZac7sunY
Here’s a playlist that dives deeper into how to use the meter & the other implications for your health - https://www.youtube.com/playlist?list=PLCMA2NaaCzMVOGjPdzlD6F0Iff4c40KMy
The lux meter in the MyCircadianApp is meant to give you an estimate of the light in your environment & light measurements using a phone can be affected by the angle of the camera, reflections & software updates/variations.
For most accurate numbers, ensure that your app is up to date, your camera lens is clean & measure close to your eye level (this is where you are receiving lux in the first place).
Using your phone to measure lux can provide a fantastic general idea of light intensity so that you optimize your light environment daily & in the evening. If you are a professional photographer, filmographer or lighting designer - a dedicated lux meter is always going to be more accurate & have less variables.
