RadonEye vs PQDIF Viewer
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
PQDIF Viewer
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PQDIF Viewer is a simple to use tool to chart Power Quality data in PQD files (IEEE 1159.3-2025). Open files from Mail, Files, or AirDrop, or tap the bundled sample to try it out. Built for power system engineers who need to inspect data on the go.
Screenshots
Verdict
The clearest difference is update cadence: PQDIF Viewer at every 3 days against RadonEye's every 3 months. RadonEye's advantage is iOS requirement (13.0 vs 15.6). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
RadonEye ships an update every 3 months, PQDIF Viewer every 3 days. The most recent releases landed on October 9, 2026 and October 8, 2026 respectively.
| Parameter | RadonEye | PQDIF Viewer |
|---|---|---|
| Price | Free | Free |
| Rating | 2.4 (47 ratings) — better | — |
| Positive reviews | 19.6% of reviews | — |
| Number of ratings | 47 — better | — |
| Update frequency | Every 3 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 29 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | FTLab | Russell Patterson |
In-app purchases
RadonEye
No in-app purchases
PQDIF Viewer
No in-app purchases
Questions
Is RadonEye free?
Is PQDIF Viewer free?
Do RadonEye or PQDIF Viewer have ads?
Which is updated more often, RadonEye or PQDIF Viewer?
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