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Screenshots

  • myCircadianClock screenshot 1
  • myCircadianClock screenshot 2
  • myCircadianClock screenshot 3
  • myCircadianClock screenshot 4

About 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.

Ratings & reviews

2.3

251 ratings

5 ★ 17% 4 ★ 6% 3 ★ 11% 2 ★ 17% 1 ★ 49%

What’s new

Version 7.5.31 · Updated August 25, 2026

- 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.

App privacy

The developer, THE SALK INSTITUTE FOR BIOLOGICAL STUDIES, SAN DIEGO, CALIFORNIA, reported these privacy practices to Apple.

Data Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

  • Location: Precise Location

Data Not Linked to You

The following data, which may be collected but is not linked to your identity, may be used for the following purposes:

  • Diagnostics: Crash Data
  • Health & Fitness: Health, Fitness
  • Location: Precise Location

Used for: Analytics, App Functionality

Alternatives to myCircadianClock

Looking for apps like myCircadianClock? Here are 6 similar apps on the App Store. The highest rated is My Circadian (5.0/5), and all 6 are free to download.

myCircadianClock vs. alternatives
App Rating Price Last updated
myCircadianClock 2.3 / 5 (251 ratings) Free August 25, 2026
Circadian: Your Natural Rhythm 4.6 / 5 (666) Free Jun 14, 2026
Ontime: Sleep & Weight Loss 3.6 / 5 (11) Free Sep 5, 2026
MyCircadianApp 4.9 / 5 (265) Free Aug 11, 2026
My Circadian 5.0 / 5 (2) Free Jan 6, 2024
AYO Circadian Health 3.0 / 5 (25) Free Sep 17, 2026
Peaks: Sleep & Energy 4.7 / 5 (285) Free Apr 15, 2026