# SleepOn vs Rem

The clearest difference is rating: Rem at 4.2 against SleepOn's 3.0. Rem also leads on review sentiment (38% vs 21%) and ratings volume (2.7K vs 189). SleepOn's advantage is in-app purchases (none vs 8) and update cadence (every 9 days vs every 6 weeks). On price, ads and device support there is nothing between them.

Both are free to download. Rem sells 8 in-app purchases, starting at $4.99 per month. SleepOn asks for nothing beyond the download.

Rem holds the better App Store score, 4.2 against 3.0. That said, the two scores are not equally well evidenced: Rem has 2.7K ratings behind it against 189, 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 38% of Rem's.

SleepOn ships an update every 9 days, Rem every 6 weeks. The most recent releases landed on October 26, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | SleepOn | Rem |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (189 ratings)](https://appshunter.io/ios/app/sleepon/id1385995937/reviews) | **[4.2 (2.7K ratings)](https://appshunter.io/ios/app/rem-auto-sleep-tracker-watch/id1534499292/reviews)** |
| Number of ratings | 189 | **2.7K** |
| Positive reviews | 21.5% of reviews | **37.7% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 6 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 128 MB | 102 MB |
| Requires iOS | **9.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, Apple Watch |
| Age rating | 17+ | 12+ |
| Developer | [Shenzhen Sleepon Technology Co., Ltd.](https://appshunter.io/developer/1385995936) | [WELLBEINE TECHNOLOGIES INC](https://appshunter.io/developer/1529157912) |

## 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


### Rem

[App page](https://appshunter.io/ios/app/rem-auto-sleep-tracker-watch/id1534499292)

This app automatically tracks your sleep cycles using your Apple Watch, providing detailed analysis of your sleep patterns. It offers insights into sleep quality, disruptions, and heart rate, helping you understand and improve your rest.

**Highlights:** Automatic sleep tracking, Sleep pattern analysis, Snore detection, Sleep score and breakdown, Heart rate analysis, Smart alarm clock

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $4.99 | per month |
| 3 Month Subscription | $19.49 | per 3 months |
| 6 Month Subscription | $25.99 | per 6 months |
| Yearly Subscription | $29.99 | per year |
| Yearly Subscription | $29.99 | per year |
| Rem Premium | $29.99 | per year |
| Yearly Subscription | $59.99 | per year |
| Lifetime Subscription | $49.99 | one-time |

**What reviewers like**

- 🚀 Accurate sleep tracking
- 📊 Detailed sleep data
- 🔍 Helpful for monitoring sleep issues
- 👍 Simple and intuitive interface
- 💤 Tracks naps

**What reviewers complain about**

- 🐛 Inconsistent data recording
- ⏰ Inaccurate sleep/wake times
- 💰 Expensive subscription
- 🔇 Snoring/noise tracking not working
- 🔄 Changing/inconsistent sleep results

**Reported bugs**

- App crashes or freezes
- Disconnection issues with Apple Watch
- Lack of customer support responsiveness

**Requested features**

- Historical sleep data and trends
- Ability to edit sleep times
- Improved smart alarm functionality
- Better integration with Apple Health
- More customization options


## Frequently asked questions

### Is SleepOn free?

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

### Is Rem free?

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

### Which has better reviews, SleepOn or Rem?

Rem is rated higher. SleepOn averages 3.0 out of 5 from 189 ratings, while Rem averages 4.2 from 2.7K ratings.

### Do SleepOn or Rem have ads?

Neither SleepOn nor Rem shows ads.

### Which is updated more often, SleepOn or Rem?

SleepOn ships an update every 9 days, and Rem every 6 weeks. Most recently, SleepOn was updated on October 26, 2026 and Rem on November 3, 2026.

---

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