# myCircadianClock > Research app for tracking diet, exercise, sleep, and health metrics. (iPhone/iPad app by THE SALK INSTITUTE FOR BIOLOGICAL STUDIES, SAN DIEGO, CALIFORNIA.) - Source: https://appshunter.io/ios/app/mycircadianclock/id982118665 (this page in markdown: same URL + `.md`) - Developer: [THE SALK INSTITUTE FOR BIOLOGICAL STUDIES, SAN DIEGO, CALIFORNIA](https://appshunter.io/developer/1571953378) - Category: Health & Fitness, Medical - Price: Free - Rating: 2.30/5 from 251 App Store ratings · 183 written reviews indexed - Age rating: 4+ - Requires: iOS 15.6 · 56 MB - Languages: American English - Released: 2015-04-13 - Data updated: 2026-08-29 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/mycircadianclock/id982118665/reviews.md ## What is myCircadianClock? 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. ## Key features - Log food and drink intake with camera - Record sleep times - Log physical activity - Monitor health parameters - Medication reminders - Integrates with HealthKit ## What do users think of myCircadianClock? Overall sentiment: negative **Pros** - 🚀 Easy to use - 💡 Contributes to research - 👍 Helpful for tracking health - 🚀 Simple and effective **Cons** - 🐛 Buggy and glitchy - 🐛 Crashes frequently - 🐛 Data loss issues - 🐛 Slow and unresponsive - 🐛 Clunky and unintuitive UI **Commonly reported bugs** - Login/registration issues - Incorrect sleep time recording - Inability to log food/activity retrospectively - Pending data not uploading - Notification issues **Most requested features** - Ability to edit/delete entries - Better data syncing and backup - Integration with Apple Health - More customization options - Improved sleep tracking ## Recent user reviews (10 of 183) All indexed reviews: https://appshunter.io/ios/app/mycircadianclock/id982118665/reviews.md ### 1/5 — No value *2026-08-04, version 7.5.30* I had high hopes for this app as I listened to The Circadian Code audiobook. Sadly, the app is an abandoned failure. Enter all the data you want, but you won’t get reports or support. Guessing Dr. Panda paid an intern to create the app and the intern is long gone. ### 3/5 — Update Issue *2026-02-01, version 7.5.24* The app was working ok until two days ago after I updated it. Now all of my info is sitting in the pending area and it will not go through and I keep getting errors. I also am not able to use the “contact us” section on the app for the reporting the issue as I am getting errors . ### 1/5 — Very Buggy/Unusable *2026-01-31, version 7.5.24* This app is a great idea and comes from a book supposedly written by the app creator, that has some really good ideas and concepts. The app, however, doesn't generate reports. You get error codes instead. There's also no way to access or download the data. Hence, no workaround. On top of that, about 60 days worth of data just got deleted, going by my "streak" which just reset to 0, despite my using the app daily for about half a year. You'd think the doctor might spend a fraction of his royalties on getting a proper app made. ### 3/5 — Latest update *2026-01-30, version 7.5.24* Your latest update erased all my streaks. Starting from zero again ### 3/5 — Warning. *2025-07-04, version 7.5.16* You are to enter sensitive data such as income and email address to activate. Inappropriate data scraping. ### 1/5 — Glitchy *2025-05-21, version 7.5.16* Recorded all info for 15 day baseline and it was unable to upload information - will be moving on to something else. Do appreciate the blog info but the app doesn’t function. ### 1/5 — Needs Improvement *2025-05-14, version 7.5.16* Surprised that coming out of the Salk Institute this app would be so archaic and not user friendly. I’m sensitive to nnEMFs yet using this app forces me to connect to the Internet for every activity logged. Oura Apple Garmen and several other tracking devices record and store data and allow the user to log data while not connected to Bluetooth, WiFi or cellular data. This is a non negotiable for me, having to wake up turn on my WiFi and stare at blue light from the screen before I get outside for sunrise? This app would make me more sick! ### 3/5 — Utilisation compliquée *2025-03-09, version 7.5.14* L’application n’est pas simple d’utilisation. Ce serait bien de pouvoir consulter et modifier ce que l’on enregistre comme nourriture car si on se trompe cela affecte l’analyse des données. Si vous n’avez pas de réseau ça n’enregistre pas forcément non plus. ### 4/5 — Good but needs some work *2025-03-02, version 7.5.13* The app is really useful to have an idea about what you eat and when you eat it. However every 2/3rd adding of water and food seems to not go through to the servers. Overall good, but still needs improvements. ### 3/5 — Please *2025-02-14, version 7.5.13* Add feature to get informations about sleep, walking or other things from Apple Health ## Frequently asked questions about myCircadianClock ### What is this app used for? This app is designed for use in research studies that investigate how diet, exercise, and sleep influence health and healing. It helps researchers understand the relationship between the timing and amount of these activities and overall well-being. ### What are the key features of the app? Key features include a camera function to log food and drink, a sleep tab to record bedtime and wake-up times, an exercise tab to log physical activity, a health tab to monitor health parameters, personalized food menus, medication reminders, and integration with HealthKit. ### How do I get access to this app? Access to this app requires an activation code provided by the research studies you are participating in. It is not available for general download or use without this specific code. ### Is this app compatible with my device? The description mentions integration with the HealthKit framework, which is specific to Apple devices (iOS). Therefore, it is likely compatible with iOS devices that support HealthKit. Specific version requirements are not detailed. ### What kind of research studies is this app for? The app is for research studies examining the impact of diet, exercise, and sleep on health and healing. It focuses on understanding the interaction between the 'how much' and 'when' of these daily activities for improved health outcomes. ## Version history (last 5 releases) ### 7.5.31 — 2026-08-25 - Fixed medication logging and pending-item issues. - Enhanced and renamed Feedback to Contact Us with updated statuses and messaging indicators. - Added clear communication notices to avoid implying live chat. - Fixed the Settings page server response error. ### 7.5.30 — 2026-06-09 Medicine Create: Users can add new medicine entries, which are stored in the backend and reflected in the UI. Medicine List: The latest medicine data is now fetched dynamically via API, ensuring consistency between backend and mobile application. Medicine Delete: Users can delete medicine entries, with immediate updates reflected both in the backend and UI. ### 7.5.29 — 2026-05-07 Bug fixes and improvements ### 7.5.28 — 2026-04-13 Bug fixes and Improvements ### 7.5.27 — 2026-03-16 Bug fixes and improvements ## Apps similar to myCircadianClock | App | Rating | Price | Category | | --- | --- | --- | --- | | [Virtusan: Made for Your Health](https://appshunter.io/ios/app/virtusan-made-for-your-health/id1623819021) | 4.7 (505) | Free | Health & Fitness | | [My Circadian](https://appshunter.io/ios/app/my-circadian/id6450283379) | 5.0 (1) | Free | Health & Fitness | | [Ontime: Sleep & Weight Loss](https://appshunter.io/ios/app/ontime-sleep-and-weight-loss/id1564303902) | 3.6 (11) | Free | Health & Fitness | | [Circadian: Your Natural Rhythm](https://appshunter.io/ios/app/circadian-your-natural-rhythm/id1495373007) | 4.6 (659) | Free | Health & Fitness | | [Peaks: Sleep & Energy](https://appshunter.io/ios/app/peaks-sleep-and-energy/id6446705377) | 4.7 (281) | Free | Health & Fitness | | [AYO Circadian Health](https://appshunter.io/ios/app/ayo-circadian-health/id6443411831) | 3.1 (24) | Free | Health & Fitness | ## Related topics [circadian clock](https://appshunter.io/ios/topics/circadian-clock) · [my circadian clock](https://appshunter.io/ios/topics/my-circadian-clock) · [my study clock](https://appshunter.io/ios/topics/my-study-clock) · [my circadian app](https://appshunter.io/ios/topics/my-circadian-app) · [circadian life](https://appshunter.io/ios/topics/circadian-life) · [circadian](https://appshunter.io/ios/topics/circadian) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-29.*