# Eight Sleep vs Smartduvet

The clearest difference is rating: Eight Sleep at 4.8 against Smartduvet's 1.6. Eight Sleep also leads on ratings volume (18K vs 14) and review sentiment (29% vs 20%). Smartduvet's advantage is in-app purchases (none vs 2) and iOS requirement (12.0 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. Eight Sleep sells 2 in-app purchases, starting at $18.99 per month. Smartduvet asks for nothing beyond the download.

Eight Sleep holds the better App Store score, 4.8 against 1.6. That said, the two scores are not equally well evidenced: Eight Sleep has 18K ratings behind it against 14, so its average is the more settled of the two. Written reviews point the same way: 29% of Eight Sleep's written reviews are positive against 20% of Smartduvet's.

## The numbers

| Metric | Eight Sleep | Smartduvet |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (18K ratings)](https://appshunter.io/ios/app/eight-sleep/id1086913845/reviews)** | [1.6 (14 ratings)](https://appshunter.io/ios/app/smartduvet/id1407369714/reviews) |
| Number of ratings | **18K** | 14 |
| Positive reviews | **28.7% of reviews** | 20.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 days | — |
| Monetization | Free with in-app purchases | **Free** |
| Size | 265 MB | 13 MB |
| Requires iOS | 18.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Eight Sleep, Inc](https://appshunter.io/developer/1105586839) | [SMARTDUVET](https://appshunter.io/developer/1778712037) |

## What reviewers say

### Eight Sleep

[App page](https://appshunter.io/ios/app/eight-sleep/id1086913845)

This system intelligently adjusts temperature and elevation for personalized sleep. It tracks sleep stages, heart rate, and HRV, offering insights to improve rest. Wake up gently with customizable vibration and thermal changes.

**Highlights:** Personalized temperature control, Automatic sleep stage tracking, Heart rate and HRV monitoring, Gentle wake-up alarms, Dual sleep profiles, AI-driven sleep insights

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 8+ Pro (Monthly) | $18.99 | per month |
| 8+ Pro (Annual) | $179.99 | per year |

**What reviewers like**

- 🚀 Amazing sleep quality
- 🌡️ Effective temperature control
- 📊 Detailed sleep tracking
- 🤖 Helpful AI features
- 🏆 Great customer service

**What reviewers complain about**

- 🐛 Buggy app with frequent crashes
- 🔌 Requires constant internet connection
- 🕰️ Alarm and temperature controls not intuitive
- 🔄 Inconsistent sleep data and metrics
- 💰 Expensive with mandatory subscription

**Reported bugs**

- App freezes and loses connection to pod
- Alarms not working or turning off properly
- Temperature settings not saving or resetting
- Sleep data not syncing or displaying accurately
- Frequent app crashes and performance issues

**Requested features**

- Apple Watch app integration
- Offline temperature/alarm controls
- Customizable sleep tracking and insights
- Improved alarm snooze/dismiss functionality
- Nap mode and more sleep schedule flexibility


### Smartduvet

[App page](https://appshunter.io/ios/app/smartduvet/id1407369714)

Control your bed's temperature and set automated bed-making times through a mobile interface. Prepare your sleep environment for optimal comfort before you even get into bed.

**Highlights:** Set preferred bed temperature, Schedule bed-making times, Preheat or cool bed, Remote control via app

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Eight Sleep free?

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

### Is Smartduvet free?

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

### Which has better reviews, Eight Sleep or Smartduvet?

Eight Sleep is rated higher. Eight Sleep averages 4.8 out of 5 from 18K ratings, while Smartduvet averages 1.6 from 14 ratings.

### Do Eight Sleep or Smartduvet have ads?

Neither Eight Sleep nor Smartduvet shows ads.

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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.*