Comparison

OpenRadiation vs Radex

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

Head to head
About

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.

Highlights
  • Measure radioactivity levels
  • Assess radiation exposure
  • Contribute to citizen science
  • Collaborative data database
  • Share measurements
  • View data online
Features
Read full description

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.

About

Radex

This application measures 5G EMF radiation using your device's sensors and magnetometer. It offers an easy-to-use interface with a color-coded system for readings and supports Apple Watch integration.

Highlights
  • 5G EMF radiation detection
  • On-device sensor utilization
  • Magnetometer for accuracy
  • Color-coded readings
  • Apple Watch support
Features
Read full description

Radex is a mobile app which detects the 5G EMF Radiation on the device and around the enviroment, the software is calibrated with professional equipment and using on device sensors and magnetometer to measure accuracy. It is free and easy to use with a color code for reading. This app comes with support for Apple Watch.

Screenshots

OpenRadiation4 screens
Radex4 screens

Verdict

The call

The clearest difference is ads: OpenRadiation at none against Radex's shown. OpenRadiation also leads on monetization model (free vs ad-supported). Radex's advantage is review sentiment (33% vs 0%) and rating (2.3 vs 2.0). On price, ratings volume, update cadence and in-app purchases 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

Radex holds the better App Store score, 2.3 against 2.0. Both are backed by a comparable volume of ratings — 4 and 3 respectively. Written reviews point the same way: 0% of OpenRadiation's written reviews are positive against 33% of Radex's.

UpkeepUpdate frequency

OpenRadiation ships an update every 3 months, Radex every 2 months. The most recent releases landed on June 1, 2026 and September 9, 2026 respectively.

Scorecard4 real differences · 6 level
OpenRadiation versus Radex: the parameters behind the verdict, then further details
ParameterOpenRadiationRadex
PriceFreeFree
Rating2.0 (4 ratings)2.3 (3 ratings) — better
Positive reviews0.0% of reviews33.3% of reviews — better
Number of ratings4 — better3
Update frequencyEvery 3 monthsEvery 2 months — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree — betterAd-supported
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Apple Watch — better
Requires iOS15.015.0
Further details — not scored
Size54 MB4 MB
Age rating4+4+
DeveloperAutorite de surete nucleaire et de radioprotectionNETM S A S

Customer experience

OpenRadiation

All ratings3 ratings
Positive0.0%
Neutral66.7%
Negative33.3%
Written reviews2 reviews
Positive0.0%
Neutral50.0%
Negative50.0%

Radex

All ratings3 ratings
Positive33.3%
Neutral0.0%
Negative66.7%
Written reviews3 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

In-app purchases

None

OpenRadiation

No in-app purchases

None

Radex

No in-app purchases

Questions

Is OpenRadiation free?
OpenRadiation is free to download, with no in-app purchases.
Is Radex free?
Radex is free to download, with no in-app purchases.
Which has better reviews, OpenRadiation or Radex?
Radex is rated higher. OpenRadiation averages 2.0 out of 5 from 4 ratings, while Radex averages 2.3 from 3 ratings.
Do OpenRadiation or Radex have ads?
Radex shows ads; OpenRadiation does not.
Which is updated more often, OpenRadiation or Radex?
OpenRadiation ships an update every 3 months, and Radex every 2 months. Most recently, OpenRadiation was updated on June 1, 2026 and Radex on September 9, 2026.

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