# RadioactivityCounter vs Low Frequency Detector

The clearest difference is price: RadioactivityCounter at $4.99 against Low Frequency Detector's $9.99. RadioactivityCounter also leads on rating (3.1 vs 2.8) and review sentiment (68% vs 50%). On ratings volume, update cadence, ads and in-app purchases there is nothing between them.

RadioactivityCounter costs $4.99 and Low Frequency Detector $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

RadioactivityCounter holds the better App Store score, 3.1 against 2.8. Both are backed by a comparable volume of ratings — 10 and 6 respectively. Written reviews point the same way: 68% of RadioactivityCounter's written reviews are positive against 50% of Low Frequency Detector's.

RadioactivityCounter ships an update every 15 months, Low Frequency Detector every 9 months. The most recent releases landed on November 1, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | RadioactivityCounter | Low Frequency Detector |
| --- | --- | --- |
| Price | **$4.99** | $9.99 |
| Rating | **[3.1 (10 ratings)](https://appshunter.io/ios/app/radioactivitycounter/id464004677/reviews)** | [2.8 (6 ratings)](https://appshunter.io/ios/app/low-frequency-detector/id1196584147/reviews) |
| Number of ratings | **10** | 6 |
| Positive reviews | **68.4% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 9 months** |
| Monetization | Paid | Paid |
| Size | 11 MB | 1 MB |
| Requires iOS | **8.0** | 26.2 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Dipl.-Ing. Rolf-Dieter Klein](https://appshunter.io/developer/309148367) | [TOON,LLC](https://appshunter.io/developer/633948723) |

## 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


### Low Frequency Detector

[App page](https://appshunter.io/ios/app/low-frequency-detector/id1196584147)

This tool measures and analyzes low-frequency sounds that are difficult for the human ear to detect. It helps identify potential noise pollution from sources like construction or factories, providing detailed reports on frequency components and sound levels.

**Highlights:** Low-frequency power level measurement (<100Hz), Audible band power level measurement (Leq), 1/3 octave band analysis (OCT), FFT analysis (FFT), Time course graph (TIME), Measurement report generation, Calibration function

**In-app purchases:** none


## Frequently asked questions

### Is RadioactivityCounter free?

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

### Is Low Frequency Detector free?

Low Frequency Detector costs $9.99, with no in-app purchases.

### Which has better reviews, RadioactivityCounter or Low Frequency Detector?

RadioactivityCounter is rated higher. RadioactivityCounter averages 3.1 out of 5 from 10 ratings, while Low Frequency Detector averages 2.8 from 6 ratings.

### Do RadioactivityCounter or Low Frequency Detector have ads?

Neither RadioactivityCounter nor Low Frequency Detector shows ads.

### Which is updated more often, RadioactivityCounter or Low Frequency Detector?

RadioactivityCounter ships an update every 15 months, and Low Frequency Detector every 9 months. Most recently, RadioactivityCounter was updated on November 1, 2026 and Low Frequency Detector on October 26, 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.*