# Low Frequency Detector vs Blue Scan

The clearest difference is price: Blue Scan at $0.99 against Low Frequency Detector's $9.99. Blue Scan also leads on iOS requirement (16.6 vs 26.2). On ads, in-app purchases and device support there is nothing between them.

Low Frequency Detector costs $9.99 and Blue Scan $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Low Frequency Detector | Blue Scan |
| --- | --- | --- |
| Price | $9.99 | **$0.99** |
| Rating | **[2.8 (6 ratings)](https://appshunter.io/ios/app/low-frequency-detector/id1196584147/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | — |
| Monetization | Paid | — |
| Size | 1 MB | 1 MB |
| Requires iOS | 26.2 | **16.6** |
| Devices | iPhone | **iPhone, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [TOON,LLC](https://appshunter.io/developer/633948723) | [JOhn Lyons](https://appshunter.io/developer/571586394) |

## What reviewers say

### 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


### Blue Scan

[App page](https://appshunter.io/ios/app/blue-scan-ble-tracker/id6761592829)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Low Frequency Detector free?

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

### Is Blue Scan free?

Blue Scan costs $0.99, with no in-app purchases.

### Do Low Frequency Detector or Blue Scan have ads?

Neither Low Frequency Detector nor Blue Scan shows ads.

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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.*