--- title: "myCircadianClock - Reviews, Revenue and Downloads in United States | Apple App Store" description: "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 determi" --- # myCircadianClock — United States ![myCircadianClock App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/18/69/0d/18690dd4-aaa4-90ab-5168-3543ec79e224/AppIcon-0-0-1x_U007emarketing-0-11-0-85-220.png/400x400bb.png) **Developer:** [THE SALK INSTITUTE FOR BIOLOGICAL STUDIES, SAN DIEGO, CALIFORNIA](https://apptail.io/developer/the-salk-institute-for-biological-studies-san-diego-california-sAnc) **Category:** Health Fitness **Rating:** 2.3/5 (251 ratings) **Price:** Free **Bundle ID:** edu.myCircadianClock.MyCircadianClock **Store:** Apple App Store **Country:** United States **Version:** 7.5.31 (released 2026-08-25) **Original Release:** 2015-04-13 **App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id982118665) **AppTail Page:** [https://apptail.io/app/mycircadianclock-CSDb/united-states](https://apptail.io/app/mycircadianclock-CSDb/united-states) ## myCircadianClock Description 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. ## myCircadianClock Screenshots - [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource126/v4/16/67/c0/1667c0d7-0649-c0a6-50ac-801866d02b43/461ae039-a45d-4752-8ca1-33a4f68054de_Simulator_Screenshot_-_iPhone_14_Plus_-_2023-08-07_at_12.30.48.png/1284x2778.png) - [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource126/v4/da/4e/83/da4e832f-edac-230d-d56a-7c3ea9c58f31/bb0bdbe9-3c98-4b69-b67a-d9d57486b9e4_Simulator_Screenshot_-_iPhone_14_Plus_-_2023-08-07_at_12.32.35.png/1284x2778.png) - [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource126/v4/36/65/87/36658706-9b66-6b78-caf7-15aa6b45364f/9f849f1d-b9a1-48eb-be20-d03f36952817_Simulator_Screenshot_-_iPhone_14_Plus_-_2023-08-07_at_12.32.58.png/1284x2778.png) - [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource116/v4/4d/71/ca/4d71cade-9e8f-4ac0-060c-852f0ad41537/1430a0e7-0352-44c7-b0da-25753f591098_Simulator_Screenshot_-_iPhone_14_Plus_-_2023-08-07_at_12.32.54.png/1284x2778.png) - [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource126/v4/81/46/98/814698fd-92b3-4325-c0ce-7967b563ccfe/0e661096-edcd-4d53-86e5-80911c338bb0_Simulator_Screenshot_-_iPhone_14_Plus_-_2023-08-07_at_12.32.47.png/1284x2778.png) - [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource126/v4/78/3a/2f/783a2fda-6b92-20fd-04e3-7824c019279c/d10f646e-1351-4e77-81f2-a2614fe183dc_Simulator_Screenshot_-_iPhone_14_Plus_-_2023-08-07_at_12.32.42.png/1284x2778.png) - [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource116/v4/57/6d/c7/576dc7b3-abd4-817c-cb1e-869aac56ae4d/16979180-d125-40e7-9d7f-3afc21154910_Simulator_Screenshot_-_iPhone_14_Plus_-_2023-08-07_at_12.33.31.png/1284x2778.png) - [Screenshot 8](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource126/v4/e2/dd/94/e2dd9474-9af5-e49b-2afd-41541a2d7653/13a314f5-0847-400c-88e1-6bdb9b1fae12_Simulator_Screenshot_-_iPhone_14_Plus_-_2023-08-07_at_12.33.07.png/1284x2778.png) - [Screenshot 9](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource126/v4/65/48/60/654860f8-0aa1-0e8c-c63d-44923d49b15e/36b36b8c-c58d-4654-9802-fbd77d3bfcc3_Simulator_Screenshot_-_iPhone_14_Plus_-_2023-08-07_at_12.33.19.png/1284x2778.png) - [Screenshot 10](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource126/v4/ec/af/77/ecaf77ac-7dc7-e472-49f0-c42ee5987731/8cc87f18-076a-4e95-a4af-f67d28e1e2a1_Simulator_Screenshot_-_iPhone_14_Plus_-_2023-08-07_at_12.33.33.png/1284x2778.png) ## myCircadianClock Rating Breakdown in United States - 5 stars: 42 (17%) - 4 stars: 16 (6%) - 3 stars: 28 (11%) - 2 stars: 42 (17%) - 1 stars: 123 (49%) ## myCircadianClock Reviews in United States ### ***-- "Update Issue" 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 . -- LaureLLC, 2026-02-01 ### *---- "Very Buggy/Unusable" 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. -- Necromage, 2026-01-31 ### *---- "Needs Improvement" 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! -- wallachristy, 2025-05-14 ### **--- "Doing too much" This app is just a free way for you guys to collect data with out paying focus groups. What’s this app for? I came here because of Huberman to track my fasting time. Why are you asking about my specific foods? There’s no calories tracker next to it? Sleep: I don’t like the dial. I wake up to input my sleep and it’s for tonight. There’s no option to back chart. -- Ggjjvdeybk, 2024-10-26 ### ***-- "Use apple health more." My apple health has all my nutrition, activity, and good sleep tracking, my medications and so much more. But I’m only asked to share my step count and that is nice as a minimum. Now I have to put it all in again for this app. I want the benefit so I eventually will. But I know apple health will let me share it with you if you would just ask. There’s history too. This is just going to be a slower start than I hoped. -- Moira Cat, 2024-08-30 ### *---- "Bugs, Built-in Reporting System Broken" In addition to fiddling with the bug I describe below, I also took the time to write the following report from the apps built in “contact us” method. When I tried to submit it, I repeatedly got an error message saying to try again later. In general this app has been frustrating to navigate. As a personal developer myself, it feels thrown together. Here’s the bug description I tired to submit: “The app has a bug on iPhone were we cannot always log sleep in arrears. Even for correctly entered dates and times, the app incorrectly reports that the start time must be before the end time. We also cannot use the circular slider on the app to input time in arrears, as the app will wildly jump 3-4 days ahead if the start slider passes over 12 AM. Very annoying bug! Also, is there a good reason the text boxes in this application don’t allow for the typical aids, such as automatically starting sentences with capital letters, etc?” I expected more as I know Dr. Pandas lab behind the research is widely acclaimed. -- assemblyDruid, 2024-07-31 ### *---- "Horrible waste of time" The app acts like it’s operating, but it’s not. All the food entries ended up as pending items even though the message was received that synch was successful. The days counted up to 15 but the Clock and Reports didn’t generate. Instead a message was received that the information wouldn’t be available until the baseline history was entered. The baseline is supposed to be 14 days so that’s a bug. I don’t know how other people have gotten any value from this app. I read the book and thought as much effort went into the software as the book itself. There’s no value to this app at all because you can’t even review your entries for the baseline period. It’s a complete waste of time. You’re better off with a pen and paper. -- AZEat&Flourish, 2024-06-05 ### *---- "Unresponsive" Signed up, never got a confirmation email to verify. Doesn’t seem to be managed. -- Easywriter101, 2024-05-15 ### ***-- "Can’t register" Not able to receive an activation code and register for an account for some reason. On iOS 17.4.1 -- Ricky0235, 2024-05-13 ### *---- "Can’t Successfully Create an Account" After hearing Pam Taub speak about the program last week at Rancho La Puerta, I couldn’t wait to download this app and begin. Unfortunately, after answering all of the required questions to set up an account and entering my email address, nothing happened when I clicked submit. I also checked my email (junk folder too) to confirm that no code was received as well. My husband is encountering the same issue on his phone. Is this app still functioning? Please help! -- JeffKna, 2024-05-13 [View all myCircadianClock reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews) ## myCircadianClock Discovered Keywords - circadian - my circadian - circadian rhythm - mycircadianclock - mycircadianapp ## Apps Similar to myCircadianClock - [Reveri: Relief in Minutes](https://apptail.io/app/reveri-relief-in-minutes-EJx/united-states) - [InsideTracker](https://apptail.io/app/insidetracker-cOM/united-states) - [MyMojoHealth](https://apptail.io/app/mymojohealth-pHT/united-states) - [Virtusan: Made for Your Health](https://apptail.io/app/virtusan-made-for-your-health-WEX/united-states) - [Ontime: Sleep & Weight Loss](https://apptail.io/app/ontime-sleep-weight-loss-HxGb/united-states) - [Circadian: Your Natural Rhythm](https://apptail.io/app/circadian-your-natural-rhythm-WvQb/united-states) - [AYO Circadian Health](https://apptail.io/app/ayo-circadian-health-Mrzc/united-states) - [Peaks: Sleep & Energy](https://apptail.io/app/peaks-sleep-energy-auQm/united-states) - [My Circadian](https://apptail.io/app/my-circadian-TcSm/united-states) - [MyCircadianApp](https://apptail.io/app/mycircadianapp-gBOt/united-states) ## myCircadianClock Available In - [United States](https://apptail.io/app/mycircadianclock-CSDb/united-states) - [United Kingdom](https://apptail.io/app/mycircadianclock-CSDb/united-kingdom) - [Czechia](https://apptail.io/app/mycircadianclock-CSDb/czechia) - [Canada](https://apptail.io/app/mycircadianclock-CSDb/canada) - [Australia](https://apptail.io/app/mycircadianclock-CSDb/australia) - [Germany](https://apptail.io/app/mycircadianclock-CSDb/germany) - [India](https://apptail.io/app/mycircadianclock-CSDb/india) - [Sweden](https://apptail.io/app/mycircadianclock-CSDb/sweden) - [Italy](https://apptail.io/app/mycircadianclock-CSDb/italy) - [Switzerland](https://apptail.io/app/mycircadianclock-CSDb/switzerland) - [Slovakia](https://apptail.io/app/mycircadianclock-CSDb/slovakia) - [New Zealand](https://apptail.io/app/mycircadianclock-CSDb/new-zealand) - [Russia](https://apptail.io/app/mycircadianclock-CSDb/russia) - [Romania](https://apptail.io/app/mycircadianclock-CSDb/romania) - [France](https://apptail.io/app/mycircadianclock-CSDb/france) - [Portugal](https://apptail.io/app/mycircadianclock-CSDb/portugal) - [Türkiye](https://apptail.io/app/mycircadianclock-CSDb/turkey) - [Spain](https://apptail.io/app/mycircadianclock-CSDb/spain) - [Norway](https://apptail.io/app/mycircadianclock-CSDb/norway) - [Japan](https://apptail.io/app/mycircadianclock-CSDb/japan) - [Hong Kong SAR China](https://apptail.io/app/mycircadianclock-CSDb/hong-kong) - [Ireland](https://apptail.io/app/mycircadianclock-CSDb/ireland) - [Finland](https://apptail.io/app/mycircadianclock-CSDb/finland) - [Poland](https://apptail.io/app/mycircadianclock-CSDb/poland) - [South Africa](https://apptail.io/app/mycircadianclock-CSDb/south-africa) - [Mexico](https://apptail.io/app/mycircadianclock-CSDb/mexico) - [China](https://apptail.io/app/mycircadianclock-CSDb/china) - [Netherlands](https://apptail.io/app/mycircadianclock-CSDb/netherlands) - [South Korea](https://apptail.io/app/mycircadianclock-CSDb/south-korea) - [Denmark](https://apptail.io/app/mycircadianclock-CSDb/denmark) - [Singapore](https://apptail.io/app/mycircadianclock-CSDb/singapore) - [Greece](https://apptail.io/app/mycircadianclock-CSDb/greece) - [Argentina](https://apptail.io/app/mycircadianclock-CSDb/argentina) - [Austria](https://apptail.io/app/mycircadianclock-CSDb/austria) - [Belgium](https://apptail.io/app/mycircadianclock-CSDb/belgium) - [Bulgaria](https://apptail.io/app/mycircadianclock-CSDb/bulgaria) - [Brazil](https://apptail.io/app/mycircadianclock-CSDb/brazil) - [Chile](https://apptail.io/app/mycircadianclock-CSDb/chile) - [Colombia](https://apptail.io/app/mycircadianclock-CSDb/colombia) - [Estonia](https://apptail.io/app/mycircadianclock-CSDb/estonia) - [United Arab Emirates](https://apptail.io/app/mycircadianclock-CSDb/united-arab-emirates) - [Hungary](https://apptail.io/app/mycircadianclock-CSDb/hungary) - [Israel](https://apptail.io/app/mycircadianclock-CSDb/israel) - [Philippines](https://apptail.io/app/mycircadianclock-CSDb/philippines) - [Sri Lanka](https://apptail.io/app/mycircadianclock-CSDb/sri-lanka) - [Latvia](https://apptail.io/app/mycircadianclock-CSDb/latvia) - [North Macedonia](https://apptail.io/app/mycircadianclock-CSDb/north-macedonia) - [Malta](https://apptail.io/app/mycircadianclock-CSDb/malta) - [Lebanon](https://apptail.io/app/mycircadianclock-CSDb/lebanon) - [Malaysia](https://apptail.io/app/mycircadianclock-CSDb/malaysia) - [Nigeria](https://apptail.io/app/mycircadianclock-CSDb/nigeria) - [Kazakhstan](https://apptail.io/app/mycircadianclock-CSDb/kazakhstan) - [Kuwait](https://apptail.io/app/mycircadianclock-CSDb/kuwait) - [Nepal](https://apptail.io/app/mycircadianclock-CSDb/nepal) - [Iceland](https://apptail.io/app/mycircadianclock-CSDb/iceland) - [Peru](https://apptail.io/app/mycircadianclock-CSDb/peru) - [Azerbaijan](https://apptail.io/app/mycircadianclock-CSDb/azerbaijan) - [Pakistan](https://apptail.io/app/mycircadianclock-CSDb/pakistan) - [Indonesia](https://apptail.io/app/mycircadianclock-CSDb/indonesia) - [Croatia](https://apptail.io/app/mycircadianclock-CSDb/croatia) - [Egypt](https://apptail.io/app/mycircadianclock-CSDb/egypt) - [Ecuador](https://apptail.io/app/mycircadianclock-CSDb/ecuador) - [Saudi Arabia](https://apptail.io/app/mycircadianclock-CSDb/saudi-arabia) - [Algeria](https://apptail.io/app/mycircadianclock-CSDb/algeria) - [Dominican Republic](https://apptail.io/app/mycircadianclock-CSDb/dominican-republic) - [Slovenia](https://apptail.io/app/mycircadianclock-CSDb/slovenia) - [Cyprus](https://apptail.io/app/mycircadianclock-CSDb/cyprus) - [Tunisia](https://apptail.io/app/mycircadianclock-CSDb/tunisia) - [Belarus](https://apptail.io/app/mycircadianclock-CSDb/belarus) - [Ukraine](https://apptail.io/app/mycircadianclock-CSDb/ukraine) - [Brunei](https://apptail.io/app/mycircadianclock-CSDb/brunei) - [Luxembourg](https://apptail.io/app/mycircadianclock-CSDb/luxembourg) - [Vietnam](https://apptail.io/app/mycircadianclock-CSDb/vietnam) - [Venezuela](https://apptail.io/app/mycircadianclock-CSDb/venezuela) --- ## About AppTail [AppTail](https://apptail.io) is a mobile app intelligence platform providing app analytics, ASO (App Store Optimization) tools, keyword tracking, competitor analysis, revenue estimates, and review monitoring for iOS App Store apps. 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