RadonEye vs lüft
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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
lüft
Monitor your indoor air quality from anywhere with real-time sensor readings and visual alerts. Track trends, receive custom notifications, and analyze mold and outdoor air risks. Integrates with other devices and allows data sharing with professionals.
- Real-time IAQ sensor readings
- Traffic light color-coded alerts
- Indoor Mold Risk Indicator
- Outdoor Air Quality Risk Indicator
- Trend charts for short/long-term fluctuations
- Custom alerts and notifications
- Nightlight function programming
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Mobile app for lüft made by SunRADON, the company trusted every day by Radon and Indoor-Air-Quality professionals worldwide to monitor homes, schools, workplaces, and health care facilities. Because clean air matters, the lüft mobile app provides you easy access to monitor your Indoor-Air-Quality from anywhere and anytime. A dashboard view gives you access to (6) IAQ sensor readings at once. Traffic light color coding of the sensor readings quickly visualizes elevated or even dangerous readings. The app also provides Indoor Mold Risk and Outdoor Air Quality Risk Indicators for a complete analysis of the air surrounding you. Because Air-Quality and Radon levels fluctuate based on your home’s ventilation, airflow, and weather conditions the built-in trend charts let you drill down and review short- and long-term fluctuations from a single day to a year. Setup up custom alerts and notifications when thresholds are reached to take actions to improve the air you breathe. The lüft Mobile app advanced features also allows you to program the integrated Nightlight function to suit the comfort of your home, synchronize temperature with other lüft™ or HVAC, securely share data with Indoor-Air-Quality professional of your choice, and setup to receive daily, weekly, or monthly air-quality summary reports. It further allows to download trend data for even more in-depth analysis when needed. Setup as easy as 1-2-3: download app, plug in device, and follow the on-screen instructions.
Screenshots
Verdict
The clearest difference is monetization model: lüft at free against RadonEye's paid. RadonEye's advantage is review sentiment (20% vs 0%) and ratings volume (52 vs 13). On price, rating, update cadence and ads 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 2.3 for RadonEye against 2.5 for lüft. Both are backed by a comparable volume of ratings — 52 and 13 respectively. Written reviews are what separate them: 20% of RadonEye's written reviews are positive against 0% of lüft's.
RadonEye ships an update every 3 months, lüft every 2 months. Both last shipped on November 3, 2026.
| Parameter | RadonEye | lüft |
|---|---|---|
| Price | Free | Free |
| Rating | 2.3 (52 ratings) | 2.5 (13 ratings) — better |
| Positive reviews | 19.6% of reviews — better | 0.0% of reviews |
| Number of ratings | 52 — better | 13 |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 29 MB | 41 MB |
| Age rating | 4+ | 4+ |
| Developer | FTLab | SunRADON LLC |
Customer experience
RadonEye
lüft
Bugs and requests
RadonEye
Reported bugs
14 issues- App fails to connect to detector
- App asks user to reconnect instead of retrying
- Cannot connect to cellular
- No time stamps on historical data
- App and unit disconnect long distance
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- Data tab progress bar stuck at 92%
- App constantly disconnecting from Bluetooth
- Device turns itself off due to Bluetooth disconnect
- Device not appearing in phone's Bluetooth menu
- Firmware update issues (constant prompts)
- iOS app zoom only adjusts y-axis on graph
- Graph has no date info
- Data points on x-axis instead of date/time
- No clear app origin, developer is 3rd party
Requested features
14 requests- Add date and time stamps to data
- Enable renaming of devices
- Add Apple HomeKit integration
- Allow disabling of all sounds
- Improve UI/UX
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- Add password for security
- Provide cellular connection option
- Implement automatic retries on connection failure
- Add advanced analytics
- Save data even if power is lost
- Improve graphing functionality
- Add option for average readings in data tab
- Make alerts more audible and add phone notifications
- Provide clear instructions for firmware updates
lüft
Not enough reviews yet to summarise bugs or requests.
In-app purchases
RadonEye
No in-app purchases
lüft
No in-app purchases
