# Blueair vs RKIN

The clearest difference is rating: Blueair at 4.8 against RKIN's 1.0. Blueair also leads on update cadence (every 3 weeks vs every 9 months) and review sentiment (26% vs 0%). RKIN's advantage is iOS requirement (13.0 vs 15.0). 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.

Blueair holds the better App Store score, 4.8 against 1.0. That said, the two scores are not equally well evidenced: Blueair has 23K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 26% of Blueair's written reviews are positive against 0% of RKIN's.

Blueair ships an update every 3 weeks, RKIN every 9 months. The most recent releases landed on October 26, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | Blueair | RKIN |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (23K ratings)](https://appshunter.io/ios/app/blueair/id1016299342/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/rkin/id6740370274/reviews) |
| Number of ratings | **23K** | 1 |
| Positive reviews | **26.4% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 9 months |
| Monetization | Free | Free |
| Size | 1.3 GB | 190 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Blueair AB](https://appshunter.io/developer/981904349) | [Hotworks](https://appshunter.io/developer/1188728106) |

## What reviewers say

### Blueair

[App page](https://appshunter.io/ios/app/blueair/id1016299342)

Monitor and control your indoor air quality in real-time. Gain insights and manage your environment effectively with intelligent features, whether you're at home or away. Experience healthier living through advanced air care.

**Highlights:** Real-time air quality tracking, Seamless device controls, Insight and control of air, Intelligent adaptive features, Remote management

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Great air purifier
- 🌟 Excellent product
- 👍 Quiet operation
- 🌳 Improves air quality
- 🔍 Informative app

**What reviewers complain about**

- 🐛 Buggy app
- 🔌 Connectivity issues
- 🔍 Inaccurate sensor data
- 🕰️ Scheduling problems
- 🔒 Privacy concerns

**Reported bugs**

- App crashes on startup
- Frequent app disconnections
- Incorrect air quality readings
- Scheduling feature not working as expected
- Inability to change WiFi password

**Requested features**

- Add Google Home/Alexa integration
- Improve app stability and responsiveness
- Provide more customization options
- Allow data export and backup
- Fix daylight saving time issues


### 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 Blueair free?

Blueair 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, Blueair or RKIN?

Blueair is rated higher. Blueair averages 4.8 out of 5 from 23K ratings, while RKIN averages 1.0 from 1 ratings.

### Do Blueair or RKIN have ads?

Neither Blueair nor RKIN shows ads.

### Which is updated more often, Blueair or RKIN?

Blueair ships an update every 3 weeks, and RKIN every 9 months. Most recently, Blueair was updated on October 26, 2026 and RKIN on October 23, 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.*