# RadioactivityCounter vs InterSpec Radiation Analysis

The clearest difference is price: InterSpec Radiation Analysis at Free against RadioactivityCounter's $4.99. InterSpec Radiation Analysis also leads on rating (4.3 vs 3.1) and review sentiment (100% vs 68%). RadioactivityCounter's advantage is iOS requirement (8.0 vs 11.0). On ratings volume, update cadence, ads and in-app purchases there is nothing between them.

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

InterSpec Radiation Analysis holds the better App Store score, 4.3 against 3.1. Both are backed by a comparable volume of ratings — 10 and 12 respectively. Written reviews point the same way: 68% of RadioactivityCounter's written reviews are positive against 100% of InterSpec Radiation Analysis's.

RadioactivityCounter ships an update every 15 months, InterSpec Radiation Analysis every 11 months. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | RadioactivityCounter | InterSpec Radiation Analysis |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | [3.1 (10 ratings)](https://appshunter.io/ios/app/radioactivitycounter/id464004677/reviews) | **[4.3 (12 ratings)](https://appshunter.io/ios/app/interspec-radiation-analysis/id1447080767/reviews)** |
| Number of ratings | 10 | **12** |
| Positive reviews | 68.4% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 11 months** |
| Monetization | Paid | **Free** |
| Size | 11 MB | 80 MB |
| Requires iOS | **8.0** | 11.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Dipl.-Ing. Rolf-Dieter Klein](https://appshunter.io/developer/309148367) | [William Johnson](https://appshunter.io/developer/1447080766) |

## 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


### InterSpec Radiation Analysis

[App page](https://appshunter.io/ios/app/interspec-radiation-analysis/id1447080767)

Analyze nuclear radiation spectral data to identify nuclides, determine source activity, and calculate shielding. Supports various detector file formats and includes tools for dose rate calculations and nuclide decay information.

**Highlights:** Spectral nuclear radiation data analysis, Nuclide identification, Source activity determination, Shielding amount calculation, Spectral file format conversion, Dose rate calculations, Interactive nuclide decay information

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RadioactivityCounter free?

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

### Is InterSpec Radiation Analysis free?

InterSpec Radiation Analysis is free to download, with no in-app purchases.

### Which has better reviews, RadioactivityCounter or InterSpec Radiation Analysis?

InterSpec Radiation Analysis is rated higher. RadioactivityCounter averages 3.1 out of 5 from 10 ratings, while InterSpec Radiation Analysis averages 4.3 from 12 ratings.

### Do RadioactivityCounter or InterSpec Radiation Analysis have ads?

Neither RadioactivityCounter nor InterSpec Radiation Analysis shows ads.

### Which is updated more often, RadioactivityCounter or InterSpec Radiation Analysis?

RadioactivityCounter ships an update every 15 months, and InterSpec Radiation Analysis every 11 months. Most recently, RadioactivityCounter was updated on October 30, 2026 and InterSpec Radiation Analysis on October 24, 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.*