# RadioactivityCounter vs RadMobile

The clearest difference is price: RadMobile at Free against RadioactivityCounter's $4.99. RadMobile also leads on update cadence (every 2 months vs every 15 months). RadioactivityCounter's advantage is iOS requirement (8.0 vs 13.0). On ads, in-app purchases and device support there is nothing between them.

RadMobile is free to download; RadioactivityCounter costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

RadioactivityCounter ships an update every 15 months, RadMobile every 2 months. The most recent releases landed on November 1, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | RadioactivityCounter | RadMobile |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[3.1 (10 ratings)](https://appshunter.io/ios/app/radioactivitycounter/id464004677/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 68.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 2 months** |
| Monetization | Paid | — |
| Size | 11 MB | 6 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dipl.-Ing. Rolf-Dieter Klein](https://appshunter.io/developer/309148367) | [Radiation Solutions Inc](https://appshunter.io/developer/1440487403) |

## What reviewers say

### RadioactivityCounter

[App page](https://appshunter.io/ios/app/radioactivitycounter/id464004677)

Transform your phone into a functional radioactivity counter. Measure gamma and some beta radiation using your device's camera sensor after calibration. Useful for personal use and experimentation with radiation sources.

**Highlights:** Real radioactivity counter functionality, Converts phone into Geiger Müller Counter, Measures gamma and some beta radiation, Requires calibration for accuracy, Expert setup for precise measurements, Supports various iPhone and iPad models

**Features:** macOS Compatibility

**In-app purchases:** none


### RadMobile

[App page](https://appshunter.io/ios/app/radmobile/id1454535378)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RadioactivityCounter free?

RadioactivityCounter costs $4.99, with no in-app purchases.

### Is RadMobile free?

RadMobile is free to download, with no in-app purchases.

### Do RadioactivityCounter or RadMobile have ads?

Neither RadioactivityCounter nor RadMobile shows ads.

### Which is updated more often, RadioactivityCounter or RadMobile?

RadioactivityCounter ships an update every 15 months, and RadMobile every 2 months. Most recently, RadioactivityCounter was updated on November 1, 2026 and RadMobile on October 29, 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.*