# myCircadianClock vs Scndbrain

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.

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

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.

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

## The numbers

| Metric | myCircadianClock | Scndbrain |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (251 ratings)](https://appshunter.io/ios/app/mycircadianclock/id982118665/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/scndbrain/id6760379972/reviews)** |
| Number of ratings | **251** | 2 |
| Positive reviews | 19.1% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | **Free** | Freemium |
| Size | 56 MB | 58 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [THE SALK INSTITUTE FOR BIOLOGICAL STUDIES, SAN DIEGO, CALIFORNIA](https://appshunter.io/developer/1571953378) | [Nicolas Tippins](https://appshunter.io/developer/1738774174) |

## What reviewers say

### myCircadianClock

[App page](https://appshunter.io/ios/app/mycircadianclock/id982118665)

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:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🚀 Easy to use
- 💡 Contributes to research
- 👍 Helpful for tracking health
- 🚀 Simple and effective

**What reviewers complain about**

- 🐛 Buggy and glitchy
- 🐛 Crashes frequently
- 🐛 Data loss issues
- 🐛 Slow and unresponsive
- 🐛 Clunky and unintuitive UI

**Reported bugs**

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

**Requested features**

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


### Scndbrain

[App page](https://appshunter.io/ios/app/scndbrain/id6760379972)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ScndBrain Pro Monthly | $8.99 | per month |
| ScndBrain Pro Annual | $64.99 | per year |


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*