Comparison

OpenRadiation vs RADOM

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

RADOM

Features
Read full description

Radiation Dosimeter Monitor (hereinafter referred to as RADOM) App is an application that monitors radiation measurement values in real time by connecting to radiation detection devices developed by JS TECHWIN Co., Ltd. via Bluetooth. 1. In order for the RADOM App to work, it is necessary to connect to the radiation detection device of JS TECHWIN Co., Ltd. via Bluetooth. 2. The real-time measured radiation dose is displayed on the screen of the smartphone so that the user can check the value, and a warning notification sounds for the radiation dose whose converted value exceeds the annual radiation exposure allowance. 3. The measured radiation dose is stored in the internal memory of the smartphone where the App is installed along with the user's location information, and the measured radiation dose can be viewed by running it again at any time. 4. The stored radiation dose can be checked by year, month, day, and hour. 5. Radiation exposure for the last year can be checked separately, so it is possible to check whether an individual has exceeded the annual radiation exposure limit.

Screenshots

OpenRadiation4 screens
RADOM4 screens

Verdict

The call

The clearest difference is update cadence: OpenRadiation at every 3 months against RADOM's every 8 months. 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.

UpkeepUpdate frequency

OpenRadiation ships an update every 3 months, RADOM every 8 months. The most recent releases landed on June 1, 2026 and September 17, 2026 respectively.

Scorecard1 real difference · 9 level
OpenRadiation versus RADOM: the parameters behind the verdict, then further details
ParameterOpenRadiationRADOM
PriceFreeFree
Rating2.0 (4 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings4 — better—
Update frequencyEvery 3 months — betterEvery 8 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better15.5
Further details — not scored
Size54 MB3 MB
Age rating4+4+
DeveloperAutorite de surete nucleaire et de radioprotectionJS TECHWIN Co., Ltd.

In-app purchases

None

OpenRadiation

No in-app purchases

None

RADOM

No in-app purchases

Questions

Is OpenRadiation free?
OpenRadiation is free to download, with no in-app purchases.
Is RADOM free?
RADOM is free to download, with no in-app purchases.
Do OpenRadiation or RADOM have ads?
Neither OpenRadiation nor RADOM shows ads.
Which is updated more often, OpenRadiation or RADOM?
OpenRadiation ships an update every 3 months, and RADOM every 8 months. Most recently, OpenRadiation was updated on June 1, 2026 and RADOM on September 17, 2026.

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