# Tempur® Sleeptracker vs RKIN

The clearest difference is rating: Tempur® Sleeptracker at 4.7 against RKIN's 1.0. Tempur® Sleeptracker also leads on review sentiment (37% vs 0%) and ratings volume (35K vs 1). RKIN's advantage is iOS requirement (13.0 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 1.0. That said, the two scores are not equally well evidenced: Tempur® Sleeptracker has 35K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 37% of Tempur® Sleeptracker's written reviews are positive against 0% of RKIN's.

Tempur® Sleeptracker ships an update every 3 months, RKIN every 9 months. The most recent releases landed on October 27, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | Tempur® Sleeptracker | RKIN |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (35K ratings)](https://appshunter.io/ios/app/tempur-sleeptracker-ai/id1634707821/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/rkin/id6740370274/reviews) |
| Number of ratings | **35K** | 1 |
| Positive reviews | **37.1% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 9 months |
| Monetization | Free | Free |
| Size | 98 MB | 190 MB |
| Requires iOS | 17.5 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Fullpower®](https://appshunter.io/developer/282995850) | [Hotworks](https://appshunter.io/developer/1188728106) |

## What reviewers say

### 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


### RKIN

[App page](https://appshunter.io/ios/app/rkin/id6740370274)

Monitor your home's water and air quality in real-time. The app offers seamless device setup, timely filter replacement reminders, and customizable settings for personalized environmental control. Gain insights with detailed usage reports to ensure a healthy living space.

**Highlights:** Real-time water and air quality monitoring, Seamless device setup, Filter replacement reminders, Customizable appliance settings, Detailed usage reports, Personalized environmental control

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Tempur® Sleeptracker free?

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

### Is RKIN free?

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

### Which has better reviews, Tempur® Sleeptracker or RKIN?

Tempur® Sleeptracker is rated higher. Tempur® Sleeptracker averages 4.7 out of 5 from 35K ratings, while RKIN averages 1.0 from 1 ratings.

### Do Tempur® Sleeptracker or RKIN have ads?

Neither Tempur® Sleeptracker nor RKIN shows ads.

### Which is updated more often, Tempur® Sleeptracker or RKIN?

Tempur® Sleeptracker ships an update every 3 months, and RKIN every 9 months. Most recently, Tempur® Sleeptracker was updated on October 27, 2026 and RKIN on October 23, 2026.

---

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