myCircadianClock

2.6
515 reviews
Content rating
Everyone
100K+
Downloads
Content rating
Everyone
Learn more
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About this app

myCircadianClock.
The myCircadianClock app is for use in research studies examining how diet, exercise, and sleep affect health. Our body contains circadian (circa – approximately and dian – day) or 24 h clocks that influences the timing of sleep, hunger, metabolism, and physical ability. Research studies run in different locations are trying to understand the interaction between “how much” and “when” we sleep, eat, or exercise for better health. You need an activation code from these research studies to download and use the app.
Following are the key features:
Camera function to snap picture of everything you eat or drink
Sleep tab to record time to bed and time of waking up, and sleep quality
Exercise tab to log physical activity
Food and Beverage tab to log all dietary intake including an autofill option to add frequently eating items easily
Water tab to log water
Health tab to log and monitor health parameters
Medication reminders to track your medicine/ supplement intake
Contact the research coordinator for any questions/ help.
Blogs tab to read scientific blogs on various topics like food, nutrition, sleep, time-restricted eating, etc.
Additional Features:
Health Tracking : Now you can track your results for a wide variety of vitals and blood tests. You can now also log in metric units.
Daily tracking and study status info on the home page : With a quick glance at the homepage, you can see when you ate that day, step counts, last night’s sleep duration, and where you are in the study.
Step Counts : Now you can view your step counts from Google Fit/ Apple Health in the app.
Notifications are used to provide health tips and reminders.
Settings : You can set your eating, sleeping, and exercise targets in one place. You can also set reminders for sleep, medicine, and water, eating window start and end notifications from the settings page.
Meditation tracking.
Improved user experience : The myCircadianClock app has been redesigned to make it easier and more enjoyable to use.
For more information, please refer to our [Privacy Policy](https://www.mycircadianclock.org/privacy/).
Updated on
Jun 8, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Location, Personal info and 3 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

2.5
510 reviews
Sofia Lopez
February 20, 2021
Using the app for 3 weeks: In the baseline period, you cannot see your entries. Which is a hassle. But after the baseline period, you have access to the info. I like how easy it is to track your food- just snap a picture. No calorie counting:) When I have questions, I get a response within a 1-2 days. I would give it 5 stars but it does not download the workouts from Google Fit. I use Strava for my workouts. And added the Google Fit app. But I still have to manually enter workouts:(
6 people found this review helpful
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A Google user
April 6, 2020
I'm still in the 2 week base line period so I have yet to see how things work after that, and I love the guide to help get you set up and understand the study, but the data is going to be misleading for 2 reasons. 1: You can't edit food entries once saved so mistakes can't be corrected. 2: The editing feature for sleep is faulty - even if you enter sleep for a different day/time than what already exists, it thinks you're trying to replace it and seems to have issues recognizing the differences.
15 people found this review helpful
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Mike McDermott
June 13, 2020
I'm frustrated with this app. I entered my food for 14 days. I was unable to view or edit until 14 days of this. The app is supposed to sync with google fit. I purchased an app to sync fitbit data to google fit, and this app seemed to be importing data, but it does not. So the app got my food, but not sleep or exercises. It looks like if you go through 14 days, you can set the app to remind you when to eat and sleep. Thats the only benefit. Not too valuable, really.
17 people found this review helpful
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What’s new

1) Goals not updating once set resolved
2) Goals Pending items issue fixed
3) Duplicate Goal values stored in Coordinator portal issue fixed
4) Goals Health Keys value naming typos fixed
5) Goals reset to null or blank when research switch issue tested
Content rating
Everyone
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App support

About the developer
Satchidananda Panda
satchin@gmail.com
United States