# SleepOn vs CIRCUL RING

The clearest difference is rating: SleepOn at 3.0 against CIRCUL RING's 2.3. SleepOn also leads on update cadence (every 9 days vs every 3 weeks) and ratings volume (181 vs 34). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SleepOn holds the better App Store score, 3.0 against 2.3. That said, the two scores are not equally well evidenced: SleepOn has 181 ratings behind it against 34, so its average is the more settled of the two. Written reviews point the same way: 21% of SleepOn's written reviews are positive against 13% of CIRCUL RING's.

SleepOn ships an update every 9 days, CIRCUL RING every 3 weeks. The most recent releases landed on October 5, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | SleepOn | CIRCUL RING |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (181 ratings)](https://appshunter.io/ios/app/sleepon/id1385995937/reviews)** | [2.3 (34 ratings)](https://appshunter.io/ios/app/circul-ring/id6476754730/reviews) |
| Number of ratings | **181** | 34 |
| Positive reviews | **21.5% of reviews** | 12.9% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 3 weeks |
| Monetization | Free | Free |
| Size | 128 MB | 106 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Shenzhen Sleepon Technology Co., Ltd.](https://appshunter.io/developer/1385995936) | [BodiMetrics, LLC](https://appshunter.io/developer/1037690466) |

## What reviewers say

### SleepOn

[App page](https://appshunter.io/ios/app/sleepon/id1385995937)

This system uses a smart ring and an app to monitor your sleep health. It collects biological data to screen for sleep issues and provides detailed reports. The app helps you track long-term sleep patterns and offers risk warnings for potential health concerns.

**Highlights:** Real-time heart rate and oxygen monitoring, Professional daily sleep reports, Sleep stages and AHI reporting, Sleep activity and debt tracking, Family and friends data sharing, Bluetooth connectivity and firmware updates

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🚀 Detailed sleep data
- 👍 Useful sleep tracking features
- 🔒 Secure and reliable
- 💡 Innovative sleep monitoring device

**What reviewers complain about**

- 🐛 Inaccurate sleep stage detection
- 🔋 Battery life issues
- 🔍 Poor customer support
- 🔍 Inconsistent data recording

**Reported bugs**

- App crashes after firmware updates
- Bluetooth connectivity problems
- Data sync failures

**Requested features**

- Multiple alarm options
- Improved data visualization
- Better integration with health apps


### 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 SleepOn free?

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

### Is CIRCUL RING free?

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

### Which has better reviews, SleepOn or CIRCUL RING?

SleepOn is rated higher. SleepOn averages 3.0 out of 5 from 181 ratings, while CIRCUL RING averages 2.3 from 34 ratings.

### Do SleepOn or CIRCUL RING have ads?

Neither SleepOn nor CIRCUL RING shows ads.

### Which is updated more often, SleepOn or CIRCUL RING?

SleepOn ships an update every 9 days, and CIRCUL RING every 3 weeks. Most recently, SleepOn was updated on October 5, 2026 and CIRCUL RING on October 8, 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.*