Comparison

RadonEye vs Airthings

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

RadonEye

This smart device provides real-time radon detection for your home. It offers high sensitivity and accurate measurements, with data accessible and configurable via a smartphone app.

Highlights
  • Real-time radon detection
  • High sensitivity and accuracy
  • Dual ionization chamber system
  • Fast initial data output (<1 hour)
  • Bluetooth smartphone connectivity
  • Data recording and graphing
  • Customizable alarm settings
Features
Read full description

RadonEye is a real-time smart radon detector for the homeowners. It has the high sensitivity 0.5cpm/pCi/l, about 20~30 times more than conventional radon detector. RD200 has a dual Structured pulsed-ionization chamber system and a highly accurate detection circuit. Its first reliable data out time is below 1hour from measurement start. The Bluetooth function allows you to record data, display graphs conveniently and set alarms using your smartphone

About

Airthings

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
Read full description

Breathe better with Airthings! Smart air quality monitors & purifiers you can trust. Shift your state of being with Airthings. Our products can help you improve indoor air quality leading to better focus, calming of allergies, and enhancement of sleep while ensuring an overall more healthy home. It features: • Quick and easy device setup • AirGlimpse™: Color-coded indicators give you at-a-glance information about your air quality • Access to the detailed graphs to help you track and find trends over time • Set focuses for your devices - air quality data broken down into high engagement problems that you care about • Control your Renew air purifier from anywhere • 5-day pollen forecast for your location with actionable advice • Notifications inform you of poor air quality and suggest ways to improve it, fast • Tips for addressing common indoor air quality problems and how to make the most of your device • Recommendations on the best Airthings monitor for your needs • Subscribe to Air Reports - We’ll send you a monthly update which summarises all the sensor data for your location. This app supports all Airthings products. If you have questions about using the app or any of our monitors, please refer to the Airthings Help Center or contact support@airthings.com.

Screenshots

RadonEye4 screens
Airthings4 screens

Verdict

The call

The clearest difference is rating: Airthings at 4.4 against RadonEye's 2.3. Airthings also leads on update cadence (fortnightly vs every 3 months) and ratings volume (3K vs 52). RadonEye's advantage is iOS requirement (13.0 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

Airthings holds the better App Store score, 4.4 against 2.3. That said, the two scores are not equally well evidenced: Airthings has 3K ratings behind it against 52, so its average is the more settled of the two. Written reviews point the same way: 20% of RadonEye's written reviews are positive against 33% of Airthings's.

UpkeepUpdate frequency

RadonEye ships an update every 3 months, Airthings fortnightly. The most recent releases landed on October 23, 2026 and October 30, 2026 respectively.

Scorecard6 real differences · 4 level
RadonEye versus Airthings: the parameters behind the verdict, then further details
ParameterRadonEyeAirthings
PriceFreeFree
Rating2.3 (52 ratings)4.4 (3K ratings) — better
Positive reviews19.6% of reviews33.0% of reviews — better
Number of ratings523K — better
Update frequencyEvery 3 monthsFortnightly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better17.6
Further details — not scored
Size29 MB104 MB
Age rating4+4+
DeveloperFTLabAirthings ASA

Customer experience

RadonEye

All ratings47 ratings
Positive19.1%
Neutral23.4%
Negative57.4%
Written reviews46 reviews
Positive19.6%
Neutral19.6%
Negative60.9%

Airthings

All ratings3,022 ratings
Positive83.7%
Neutral3.4%
Negative12.9%
Written reviews466 reviews
Positive33.0%
Neutral9.0%
Negative57.9%

Bugs and requests

RadonEye

Not enough reviews yet to summarise bugs or requests.

Airthings

Reported bugs

6 issues
  • 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
Show 1 more
  • Unexplained battery drain on devices

Requested features

6 requests
  • 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
Show 1 more
  • Improve syncing and connectivity reliability

In-app purchases

None

RadonEye

No in-app purchases

None

Airthings

No in-app purchases

Questions

Is RadonEye free?
RadonEye 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, RadonEye or Airthings?
Airthings is rated higher. RadonEye averages 2.3 out of 5 from 52 ratings, while Airthings averages 4.4 from 3K ratings.
Do RadonEye or Airthings have ads?
Neither RadonEye nor Airthings shows ads.
Which is updated more often, RadonEye or Airthings?
RadonEye ships an update every 3 months, and Airthings fortnightly. Most recently, RadonEye was updated on October 23, 2026 and Airthings on October 30, 2026.

Other comparisons