# Radon Eye Plus vs Airthings

The clearest difference is rating: Airthings at 4.4 against Radon Eye Plus's 3.5. Airthings also leads on ratings volume (3K vs 4) and update cadence (fortnightly vs monthly). Radon Eye Plus's advantage is monetization model (free vs free with in-app purchases) and iOS requirement (9.0 vs 17.6). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Airthings holds the better App Store score, 4.4 against 3.5. That said, the two scores are not equally well evidenced: Airthings has 3K ratings behind it against 4, so its average is the more settled of the two. Written reviews split almost evenly too, at 33% and 33% positive.

Radon Eye Plus ships an update monthly, Airthings fortnightly. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Radon Eye Plus | Airthings |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (4 ratings)](https://appshunter.io/ios/app/radon-eye-plus/id1284320339/reviews) | **[4.4 (3K ratings)](https://appshunter.io/ios/app/airthings/id1560329275/reviews)** |
| Number of ratings | 4 | **3K** |
| Positive reviews | **33.3% of reviews** | 33.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 44 MB | 104 MB |
| Requires iOS | **9.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [FTLab](https://appshunter.io/developer/897369751) | [Airthings ASA](https://appshunter.io/developer/1101077902) |

## What reviewers say

### Radon Eye Plus

[App page](https://appshunter.io/ios/app/radon-eye-plus/id1284320339)

This app connects to a RadonEyePlus device to monitor radon levels. It allows you to download measurement logs and visualize radon concentration data over time with graphs.

**Highlights:** Monitors radon measurement information, Downloads log data, Displays radon values as a graph, Connects with RadonEyePlus devices

**Features:** macOS Compatibility

**In-app purchases:** none


### Airthings

[App page](https://appshunter.io/ios/app/airthings/id1560329275)

Monitor and improve your indoor air quality with smart devices. Get real-time insights, track trends, and receive actionable advice to enhance focus, reduce allergies, and sleep better. Control your air purifier and stay informed about pollen forecasts.

**Highlights:** Quick device setup, At-a-glance air quality indicators, Detailed trend tracking, Air purifier remote control, 5-day pollen forecast, Air quality notifications, Personalized air reports

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Simple to understand and setup
- 🚀 Intuitive and easy to use app
- 🚀 Efficient and fast
- 🚀 Provides great information on air quality
- 🚀 Accurate and reliable sensor readings

**What reviewers complain about**

- 🐛 App has connectivity issues, often fails to sync
- 🐛 App is buggy and has many errors
- 🐛 Inaccurate or inconsistent sensor readings
- 🐛 Difficult to set up and connect devices
- 🐛 Lack of customization options for thresholds and notifications

**Reported bugs**

- App crashes frequently
- Unable to add new devices or accounts
- Incorrect color coding and data display
- Delayed or missing sensor data updates
- Bluetooth connectivity issues

**Requested features**

- Add HomeKit integration
- Allow custom thresholds and notifications
- Improve data visualization and historical trending
- Add more detailed information on air quality issues and remedies
- Provide an iPad-optimized version of the app


## Frequently asked questions

### Is Radon Eye Plus free?

Radon Eye Plus is free to download, with no in-app purchases.

### Is Airthings free?

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

### Which has better reviews, Radon Eye Plus or Airthings?

Airthings is rated higher. Radon Eye Plus averages 3.5 out of 5 from 4 ratings, while Airthings averages 4.4 from 3K ratings.

### Do Radon Eye Plus or Airthings have ads?

Neither Radon Eye Plus nor Airthings shows ads.

### Which is updated more often, Radon Eye Plus or Airthings?

Radon Eye Plus ships an update monthly, and Airthings fortnightly. Most recently, Radon Eye Plus was updated on October 29, 2026 and Airthings on October 30, 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.*