iPhone Screenshots


This 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
- Integrated healthkit framework to track your health information.

What's New

Version 2.8

1 . Fixed Tabbar issue for iPhone X.
2 . Performance improvement in home screen.

Ratings and Reviews

1.7 out of 5

45 Ratings
45 Ratings

Poor performance, design


I really want to use this app consistently but the slow performance and overall poor design make it difficult. The app is laggy and I’ll frequently tap on something several times before it finally loads. Often it’s so bad or frustrating that I’ll move on to other tasks and forget about logging a meal until later (at which time I cannot capture a photo and I may misremember all the things I ate). That doesn’t make for very reliable data. A skim of other reviews of the app shows I’m not alone. It’s such a disappointment, as the research is exciting and if only I could contribute (and learn something about my habits in the process!) I would love to do so.

Frustratingly bad


I hate deleting this app before the 14 weeks they want for their data, but it’s SO hard to use! The lag makes it hard to take photos & record sleep or activity. The ability to edit data is CRAP. E.g. when I wake up & try to record my sleep for the night, I’ll often press the wrong button *because I just woke up!!*. But then I can’t correct it because it won’t let you change sleep satisfaction after you make an entry. Also the way it tracks a night’s sleep between days makes NO sense!!! I don’t like leaving a study in the middle of things, but I couldn’t supply accurate data.



I find the work that Dr. Panda is doing incredibly interesting and very valuable. I was thrilled to find out that I could contribute to the research effort around sleep, nutrition, and circadian rhythms. However this app is lacking some essential functionality. For me, it doesn’t seem like the (+) button even works to be able to add any exercise or sleep. I can only take a picture and log as food/beverage/water. Hopefully further updates will increase the ease of use! I’m looking forward to using this app in the coming weeks :)


26.5 MB
Health & Fitness
Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© RBIOP lab, Salk Institute, La Jolla


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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