Comparison

myCircadianClock vs Scndbrain

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

myCircadianClock

This app aids research studies by tracking diet, exercise, and sleep patterns to understand their impact on health. It allows users to log food intake, sleep times, physical activity, and health metrics, with medication reminders and HealthKit integration.

Highlights
  • Log food and drink intake with camera
  • Record sleep times
  • Log physical activity
  • Monitor health parameters
  • Medication reminders
  • Integrates with HealthKit
Features
Read full 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.

About

Scndbrain

This AI-powered health coach analyzes your nutrition, sleep, and training data to provide personalized feedback and guidance. Log meals via text, voice, or photo for instant macro breakdowns and proactive check-ins based on your recovery.

Highlights
  • AI-driven personalized coaching
  • Meal logging via photo, voice, or text
  • Real-time macro tracking
  • Apple Health data integration (HRV, sleep, steps)
  • Proactive data-driven check-ins
  • Recovery-based coaching
Features
Read full description

Scndbrain is your personal AI health coach built around your data, not generic advice. Log meals by typing, voice, or photo. Get instant macro breakdowns, personalized feedback, and coaching that adapts to how you actually eat, sleep, and train. WHAT IT DOES • Tracks calories, protein, carbs, and fat in real time • Reads your Apple Health data — HRV, sleep, steps, and more • Gives coaching based on your recovery, not a generic plan • Logs meals from photos using AI vision • Voice logging via Whisper — just say what you ate • Proactive check-ins when your data says something matters YOUR AI COACH, NOT A CALORIE COUNTER Scndbrain connects the dots between your food, sleep, and training. When your HRV drops and protein is low, it tells you why it matters and what to do about it — like having a nutritionist, recovery coach, and performance analyst in your pocket. Free to try. Pro unlocks unlimited coaching, proactive check-ins, voice and photo logging, and full Apple Health integration. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

myCircadianClock4 screens
Scndbrain4 screens

Verdict

The call

The clearest difference is rating: Scndbrain at 5.0 against myCircadianClock's 2.3. myCircadianClock's advantage is in-app purchases (none vs 2) and ratings volume (251 vs 2). On price, update cadence, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Scndbrain sells 2 in-app purchases, starting at $8.99 per month. myCircadianClock asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Scndbrain holds the better App Store score, 5.0 against 2.3. That said, the two scores are not equally well evidenced: myCircadianClock has 251 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

myCircadianClock ships an update monthly, Scndbrain every 2 months. The most recent releases landed on August 29, 2026 and September 21, 2026 respectively.

Scorecard4 real differences · 6 level
myCircadianClock versus Scndbrain: the parameters behind the verdict, then further details
ParametermyCircadianClockScndbrain
PriceFreeFree
Rating2.3 (251 ratings)5.0 (2 ratings) — better
Positive reviews19.1% of reviews—
Number of ratings251 — better2
Update frequencyMonthly — betterEvery 2 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.1 — better
Further details — not scored
Size56 MB58 MB
Age rating4+17+
DeveloperTHE SALK INSTITUTE FOR BIOLOGICAL STUDIES, SAN DIEGO, CALIFORNIANicolas Tippins

Customer experience

myCircadianClock

All ratings251 ratings
Positive23.1%
Neutral11.2%
Negative65.7%
Written reviews183 reviews
Positive19.1%
Neutral14.2%
Negative66.7%

Scndbrain

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

myCircadianClock

Reported bugs

5 issues
  • Login/registration issues
  • Incorrect sleep time recording
  • Inability to log food/activity retrospectively
  • Pending data not uploading
  • Notification issues

Requested features

5 requests
  • Ability to edit/delete entries
  • Better data syncing and backup
  • Integration with Apple Health
  • More customization options
  • Improved sleep tracking

Scndbrain

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

myCircadianClock

No in-app purchases

2 purchases

Scndbrain

Subscriptions2
  • ScndBrain Pro Monthly$8.991 Month
  • ScndBrain Pro Annual$64.991 Year

Questions

Is myCircadianClock free?
myCircadianClock is free to download, with no in-app purchases.
Is Scndbrain free?
Scndbrain is free to download, with in-app purchases available.
Which has better reviews, myCircadianClock or Scndbrain?
Scndbrain is rated higher. myCircadianClock averages 2.3 out of 5 from 251 ratings, while Scndbrain averages 5.0 from 2 ratings.
Do myCircadianClock or Scndbrain have ads?
Neither myCircadianClock nor Scndbrain shows ads.
Which is updated more often, myCircadianClock or Scndbrain?
myCircadianClock ships an update monthly, and Scndbrain every 2 months. Most recently, myCircadianClock was updated on August 29, 2026 and Scndbrain on September 21, 2026.

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