# Slendertone Connect vs Eight Sleep

The clearest difference is in-app purchases: Slendertone Connect at none against Eight Sleep's 2. Slendertone Connect also leads on iOS requirement (14.0 vs 18.0). Eight Sleep's advantage is ads (none vs shown) and update cadence (every 4 days vs every 2 months). On price, monetization model 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. Slendertone Connect asks for nothing beyond the download.

Eight Sleep holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: Eight Sleep has 18K ratings behind it against 456, so its average is the more settled of the two. Written reviews point the same way: 17% of Slendertone Connect's written reviews are positive against 29% of Eight Sleep's.

Slendertone Connect ships an update every 2 months, Eight Sleep every 4 days. The most recent releases landed on November 1, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Slendertone Connect | Eight Sleep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (456 ratings)](https://appshunter.io/ios/app/slendertone-connect/id980641515/reviews) | **[4.8 (18K ratings)](https://appshunter.io/ios/app/eight-sleep/id1086913845/reviews)** |
| Number of ratings | 456 | **18K** |
| Positive reviews | 17.0% of reviews | **28.7% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 4 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 42 MB | 265 MB |
| Requires iOS | **14.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 12+ |
| Developer | [Slendertone](https://appshunter.io/developer/980641514) | [Eight Sleep, Inc](https://appshunter.io/developer/1105586839) |

## What reviewers say

### Slendertone Connect

[App page](https://appshunter.io/ios/app/slendertone-connect/id980641515)

This app offers a personalized training experience to help you achieve your toning goals. It provides custom coaching, interactive programs, workout reminders, and progress tracking, all controlled wirelessly via your smart device. Achieve firmer abs, improved posture, and enhanced core strength.

**Highlights:** Personalized training experience, Custom toning programs, Interactive toning programs, Workout reminders, Progress tracking, Wireless control via smart device

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🚀 Consistent performance
- 💪 Effective for toning

**What reviewers complain about**

- 🐛 Frequent disconnections
- ⚠️ Unreliable app
- 🔁 Constant need to re-pair
- 💻 Buggy and crash-prone
- 🔒 Privacy concerns

**Reported bugs**

- Login issues
- Connectivity problems
- Crashes during setup
- Data loss and progress not tracked

**Requested features**

- Integration with Apple Health
- Apple Watch app
- Stay-logged-in option


### 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


## Frequently asked questions

### Is Slendertone Connect free?

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

### Is Eight Sleep free?

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

### Which has better reviews, Slendertone Connect or Eight Sleep?

Eight Sleep is rated higher. Slendertone Connect averages 4.6 out of 5 from 456 ratings, while Eight Sleep averages 4.8 from 18K ratings.

### Do Slendertone Connect or Eight Sleep have ads?

Slendertone Connect shows ads; Eight Sleep does not.

### Which is updated more often, Slendertone Connect or Eight Sleep?

Slendertone Connect ships an update every 2 months, and Eight Sleep every 4 days. Most recently, Slendertone Connect was updated on November 1, 2026 and Eight Sleep on November 9, 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.*