OpenRadiation vs EMF Detector
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OpenRadiation
Measure ambient radioactivity levels and assess your exposure to ionizing radiation using a compatible sensor. Contribute to a citizen science project by sharing your measurements to build a collaborative database.
- Measure radioactivity levels
- Assess radiation exposure
- Contribute to citizen science
- Collaborative data database
- Share measurements
- View data online
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Looking to know the level of radioactivity around you and assess your exposure to ionising radiation? Thanks to this application, and a compatible sensor, you can measure radioactivity. You can also contribute to a citizen science project, by helping to create a collaborative data base of radioactivity measurements in the environment: OpenRadiation (published under an Open Database License). You will then be able to share your measurements using the application and view the data in the application or on the website www.openradiation.org. Create an account on the website www.openradiation.org, and obtain a compatible sensor (see the list of compatible sensors at www.openradiation.org). Activate Bluetooth under your mobile, configure your sensor to measure radioactivity, and publish your measurements. If you do not have a compatible sensor, you can always enter your measurements manually on the website or via the application. OpenRadiation currently brings together the following scientific and academic partners: IFFO-RME - training network in major educational risks -, IRSN - public expert in research and expertise on nuclear and radiological risks -, Planète Sciences – association contributing to the scientific and technical culture of young people - and SORBONNE UNIVERSITE Fablab - digital fabrication and rapid prototyping workshop, open to students, staff and the general public.
EMF Detector
Transform your iPhone into an EMF detector to monitor electromagnetic fields. Identify radiation levels in various environments to assess safety at home, work, or in public spaces. Gain insights to make informed decisions about your surroundings.
- EMF monitoring
- Electromagnetic field detection
- Radiation level measurement
- Environmental safety assessment
- Real-time EMF readings
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Monitor your surroundings with precision using our EMF Monitoring app, designed exclusively for iOS. This innovative application transforms your iPhone into a powerful EMF detector, enabling you to identify electromagnetic fields in various environments. As you move through different areas, the app continuously measures EMF levels, allowing you to easily pinpoint zones of high and low radiation. Whether you're concerned about safety at home, in the workplace, or in public areas, EMF Monitoring provides the insights you need to assess environmental safety and make informed decisions about your surroundings. This app is using the standard Apple Terms of Use (EULA) https://www.apple.com/legal/ internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is rating: EMF Detector at 4.3 against OpenRadiation's 2.0. EMF Detector also leads on review sentiment (25% vs 0%) and ratings volume (319 vs 4). OpenRadiation's advantage is in-app purchases (none vs 3). On price, ads 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. EMF Detector sells 2 in-app purchases, starting at $4.99 per month. OpenRadiation asks for nothing beyond the download.
EMF Detector holds the better App Store score, 4.3 against 2.0. That said, the two scores are not equally well evidenced: EMF Detector has 319 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 0% of OpenRadiation's written reviews are positive against 25% of EMF Detector's.
OpenRadiation ships an update every 3 months, EMF Detector every 2 weeks. The most recent releases landed on June 1, 2026 and September 21, 2026 respectively.
| Parameter | OpenRadiation | EMF Detector |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (4 ratings) | 4.3 (319 ratings) — better |
| Positive reviews | 0.0% of reviews | 25.0% of reviews — better |
| Number of ratings | 4 | 319 — better |
| Update frequency | Every 3 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 54 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Autorite de surete nucleaire et de radioprotection | 新雨 李 |
Customer experience
OpenRadiation
EMF Detector
In-app purchases
OpenRadiation
No in-app purchases
EMF Detector
- unlimited features2 variants$4.991 Month
- unlimited features$14.99
Questions
Is OpenRadiation free?
Is EMF Detector free?
Which has better reviews, OpenRadiation or EMF Detector?
Do OpenRadiation or EMF Detector have ads?
Which is updated more often, OpenRadiation or EMF Detector?
Other comparisons
