# King Koil Smart life vs Tempur® Sleeptracker

The clearest difference is rating: Tempur® Sleeptracker at 4.7 against King Koil Smart life's 2.0. Tempur® Sleeptracker also leads on review sentiment (37% vs 9%) and update cadence (every 3 months vs every 18 months). King Koil Smart life's advantage is iOS requirement (12.0 vs 17.5). 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.

Tempur® Sleeptracker holds the better App Store score, 4.7 against 2.0. That said, the two scores are not equally well evidenced: Tempur® Sleeptracker has 35K ratings behind it against 64, so its average is the more settled of the two. Written reviews point the same way: 9% of King Koil Smart life's written reviews are positive against 37% of Tempur® Sleeptracker's.

King Koil Smart life ships an update every 18 months, Tempur® Sleeptracker every 3 months. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | King Koil Smart life | Tempur® Sleeptracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (64 ratings)](https://appshunter.io/ios/app/king-koil-smart-life/id1495299459/reviews) | **[4.7 (35K ratings)](https://appshunter.io/ios/app/tempur-sleeptracker-ai/id1634707821/reviews)** |
| Number of ratings | 64 | **35K** |
| Positive reviews | 9.4% of reviews | **37.1% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 83 MB | 98 MB |
| Requires iOS | **12.0** | 17.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [iOBED, Inc.](https://appshunter.io/developer/1445840001) | [Fullpower®](https://appshunter.io/developer/282995850) |

## What reviewers say

### King Koil Smart life

[App page](https://appshunter.io/ios/app/king-koil-smart-life/id1495299459)

This app controls a smart mattress system that adapts to your body and movement. It offers a massaging relaxation mode, dual firmness controls, and tracks your sleep quality. Wake up gently with its smart alarm feature.

**Highlights:** Body sensing technology, Massaging relaxation mode, Dual firmness controls, Sleep quality data, Smart alarm

**Features:** macOS Compatibility

**In-app purchases:** none


### Tempur® Sleeptracker

[App page](https://appshunter.io/ios/app/tempur-sleeptracker-ai/id1634707821)

This app analyzes your sleep patterns without requiring you to wear anything. It provides detailed sleep graphs, metrics like heart rate and respiration, and personalized AI-driven tips to help you improve your sleep quality. Wake up refreshed with its smart alarm feature.

**Highlights:** AI Sleep Coach with personalized tips, Respiration and heart rate monitoring, Sleep cycle alarm, Automatic sleep monitoring, Detailed sleep graphs and metrics, Apple Health integration

**In-app purchases:** none

**What reviewers like**

- 🚀 Excellent sleep tracking and analysis
- 👍 Detailed sleep reports and insights
- 🤖 Useful AI-powered features
- 🛋️ Seamless integration with adjustable base
- 💤 Helps improve sleep quality

**What reviewers complain about**

- 🐛 Inaccurate sleep tracking and data
- 🔌 Frequent WiFi disconnections
- 🤯 Buggy and laggy app performance
- 🤖 AI and sleep analysis not as advanced as claimed
- 🔒 Privacy concerns with data collection

**Reported bugs**

- Sleep recording not stopping when getting out of bed
- Firmware update issues and connection problems
- Remote control function lags and freezes
- Sleep cycle alarm not working as expected
- Inconsistent data reporting and missing sleep entries

**Requested features**

- Local API for sensors and control
- Customizable wave forms and relaxation modes
- Apple Watch integration for remote control
- Improved multi-sleeper detection and tracking
- Better accessibility and usability for vision-impaired users


## Frequently asked questions

### Is King Koil Smart life free?

King Koil Smart life is free to download, with no in-app purchases.

### Is Tempur® Sleeptracker free?

Tempur® Sleeptracker is free to download, with no in-app purchases.

### Which has better reviews, King Koil Smart life or Tempur® Sleeptracker?

Tempur® Sleeptracker is rated higher. King Koil Smart life averages 2.0 out of 5 from 64 ratings, while Tempur® Sleeptracker averages 4.7 from 35K ratings.

### Do King Koil Smart life or Tempur® Sleeptracker have ads?

Neither King Koil Smart life nor Tempur® Sleeptracker shows ads.

### Which is updated more often, King Koil Smart life or Tempur® Sleeptracker?

King Koil Smart life ships an update every 18 months, and Tempur® Sleeptracker every 3 months. Most recently, King Koil Smart life was updated on October 25, 2026 and Tempur® Sleeptracker on October 28, 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.*