# Sleep Details vs CIRCUL RING

The clearest difference is rating: Sleep Details at 4.4 against CIRCUL RING's 2.3. Sleep Details also leads on review sentiment (50% vs 13%) and ratings volume (1.1K vs 34). CIRCUL RING's advantage is in-app purchases (none vs 3) and update cadence (every 3 weeks vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. Sleep Details sells 3 in-app purchases, starting at $2.99 per month. CIRCUL RING asks for nothing beyond the download.

Sleep Details holds the better App Store score, 4.4 against 2.3. That said, the two scores are not equally well evidenced: Sleep Details has 1.1K ratings behind it against 34, so its average is the more settled of the two. Written reviews point the same way: 50% of Sleep Details's written reviews are positive against 13% of CIRCUL RING's.

Sleep Details ships an update every 2 months, CIRCUL RING every 3 weeks. The most recent releases landed on September 23, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Sleep Details | CIRCUL RING |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (1.1K ratings)](https://appshunter.io/ios/app/sleep-details/id1534838758/reviews)** | [2.3 (34 ratings)](https://appshunter.io/ios/app/circul-ring/id6476754730/reviews) |
| Number of ratings | **1.1K** | 34 |
| Positive reviews | **50.0% of reviews** | 13.3% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 19 MB | 106 MB |
| Requires iOS | 18 | **13.0** |
| Devices | iPhone, Apple Watch | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Sydvesti Oy](https://appshunter.io/developer/912783647) | [BodiMetrics, LLC](https://appshunter.io/developer/1037690466) |

## What reviewers say

### Sleep Details

[App page](https://appshunter.io/ios/app/sleep-details/id1534838758)

Track your sleep data and receive a daily sleep score based on information from your Apple Watch. Gain insights into sleep stages, heart rate, and more, with personalized ratings and factor tagging. Features a memory test and daily summaries for enhanced understanding of your sleep's impact.

**Highlights:** Daily sleep score, Detailed sleep metrics, Personalized sleep rating, Sleep factor tagging, Morning notifications, Memory test, Daily sleep summaries

**Features:** Family Sharing, Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription | $2.99 | per month |
| Yearly subscription | $29.99 | per year |
| Lifetime Access | $59.99 | one-time |

**What reviewers like**

- 👍 Great interface
- 👍 Helpful for understanding sleep
- 👍 Good for blind users

**What reviewers complain about**

- 🐛 App not working/tracking properly
- 🐛 Sleep time/data inaccurate
- 🔒 Subscription/payment issues
- 🔋 Drains battery

**Reported bugs**

- Sleep stage section disappeared
- App keeps kicking user out
- Widget doesn't update with current data

**Requested features**

- Add ability to log naps
- Improve widget updates
- Provide more explanation of sleep metrics
- Implement REM sleep tracking


### CIRCUL RING

[App page](https://appshunter.io/ios/app/circul-ring/id6476754730)

This app tracks your sleep quality, daily activity, and key health indicators. It provides personalized insights and trends to help you understand and adjust your physical state. Professional sports data recording is also included.

**Highlights:** Sleep monitoring (heart rate, stages, temperature), Daily activity tracking (heart rate, steps, calories), Health indicator trend analysis, Professional sports data recording, Personalized health tips

**In-app purchases:** none


## Frequently asked questions

### Is Sleep Details free?

Sleep Details is free to download, with in-app purchases available.

### Is CIRCUL RING free?

CIRCUL RING is free to download, with no in-app purchases.

### Which has better reviews, Sleep Details or CIRCUL RING?

Sleep Details is rated higher. Sleep Details averages 4.4 out of 5 from 1.1K ratings, while CIRCUL RING averages 2.3 from 34 ratings.

### Do Sleep Details or CIRCUL RING have ads?

Neither Sleep Details nor CIRCUL RING shows ads.

### Which is updated more often, Sleep Details or CIRCUL RING?

Sleep Details ships an update every 2 months, and CIRCUL RING every 3 weeks. Most recently, Sleep Details was updated on September 23, 2026 and CIRCUL RING on September 21, 2026.

---

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