# OpenRadiation vs Radex

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.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

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.

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.

## The numbers

| Metric | OpenRadiation | Radex |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (4 ratings)](https://appshunter.io/ios/app/openradiation/id1246249831/reviews) | **[2.3 (3 ratings)](https://appshunter.io/ios/app/radex-5g-emf-detector/id6738017621/reviews)** |
| Number of ratings | **4** | 3 |
| Positive reviews | 0.0% of reviews | **33.3% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | **Free** | Ad-supported |
| Size | 54 MB | 4 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Autorite de surete nucleaire et de radioprotection](https://appshunter.io/developer/1861431469) | [NETM S A S](https://appshunter.io/developer/1778903485) |

## What reviewers say

### OpenRadiation

[App page](https://appshunter.io/ios/app/openradiation/id1246249831)

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:** macOS Compatibility

**In-app purchases:** none


### Radex

[App page](https://appshunter.io/ios/app/radex-5g-emf-detector/id6738017621)

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:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*