My Circadian Clock

423 reviews
Content rating
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About this app

My circadian clock app is for use in research studies examining how diet, exercise and sleep affect health and healing. Our body contains circadian (circa – approximately and dian – day) or 24 h clocks that determines the time to sleep, feel hungry or get ready for physical activity. 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
- Exercise tab to log physical activity
- Personalized food menu
- Health tab to log and monitor health parameters
- Medication reminders
- Feedback with the research coordinator

Following are the new features:

- Tag Later Button : Now when you take a picture you have the option to tag it at a later time.
- 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 your daily Feedogram, step counts, exercise for the week, last nights sleep, and where you are in the study.
- Step Counts : Now you can see all of step counts from Apple Health on the app!
- Settings : Now, you can set your eating, sleeping, and exercise targets in one place. You can also set reminders, eating time notifications, and what you view on your homepage from the settings page.
- Improved user experience : The myCircadianClock app has been redesigned to make it easier and more enjoyable to use.
Updated on
Mar 14, 2022

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
423 reviews
A Google user
November 27, 2018
As stated by most of the other reviews, I am severely disappointed by this application. I watched the TedTalk that mentioned this app and was super excited to try it, for myself and to contribute to research. However, the interface is simply unusable and infuriating. This application must be completely redesigned or majorly improved if you hope to receive data from your users. I recommend modeling it after an app like MyFitnessPal. The interface is simple and user-friendly, you can look back on your input history, and receive instant results. I completed the two-week baseline period for My Circadian Clock and was hoping the app would work better after I was finished but it does not. I am uninstalling the application with the hope that it will be greatly improved and I can redownload it at a later date.
45 people found this review helpful
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A Google user
March 7, 2019
I have used this app for six months. It tracks many aspects of diet, exercise, lab results, and sleep, but is most efficient in doing what it was originally designed for -- helping to track and manage intermittent fasting patterns. For that, I have not found a better app. I stopped using the sleep tracker after about 3 months, as it is not as well designed as other trackers, and has minor bugs, such as difficulty in editing a record which covers the end of a month.
65 people found this review helpful
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A Google user
January 25, 2019
I'd love to provide data to contribute to the study, but the app is so buggy/clunky that I think that will prevent users from entering accurate and consistent data, which will affect the accuracy of the study! The app is slow and often hangs, I find myself having to reenter data, and it isn't the easiest interface, either. I originally wanted to use the app to track intermittent fasting, but I'll have to uninstall it and consider another app.
16 people found this review helpful
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What's new

1. Resolved google fit step count issue for android 10 and above.
2. Fixed google fit permission not granted toast message issue.