# Low Frequency Detector vs Frequency Detector Analyzer

The clearest difference is review sentiment: Low Frequency Detector at 50% against Frequency Detector Analyzer's 0%. Low Frequency Detector also leads on in-app purchases (none vs 2) and chart position (#192 vs unranked). Frequency Detector Analyzer's advantage is price (Free vs $9.99) and rating (4.3 vs 2.8). On ads there is nothing between them.

Frequency Detector Analyzer is free to download; Low Frequency Detector costs $9.99 up front. Frequency Detector Analyzer sells 2 in-app purchases, starting at $8.99 per 7 days. Low Frequency Detector asks for nothing beyond the download.

Frequency Detector Analyzer holds the better App Store score, 4.3 against 2.8. Both are backed by a comparable volume of ratings — 6 and 20 respectively. Written reviews complicate that: 50% of Low Frequency Detector's written reviews are positive against 0% of Frequency Detector Analyzer's, so the app with the better star average is not the one people write more warmly about.

Low Frequency Detector ships an update every 9 months, Frequency Detector Analyzer every 2 months. The most recent releases landed on October 6, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Low Frequency Detector | Frequency Detector Analyzer |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | [2.8 (6 ratings)](https://appshunter.io/ios/app/low-frequency-detector/id1196584147/reviews) | **[4.3 (20 ratings)](https://appshunter.io/ios/app/frequency-detector-analyzer/id6752298079/reviews)** |
| Number of ratings | 6 | **20** |
| Positive reviews | **50.0% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 2 months** |
| Monetization | Paid | **Free with in-app purchases** |
| Best chart rank | **#192** | — |
| Size | 1 MB | 65 MB |
| Requires iOS | 26.2 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [TOON,LLC](https://appshunter.io/developer/633948723) | [NEURASYNC](https://appshunter.io/developer/1639101560) |

## What reviewers say

### Low Frequency Detector

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

**Currently charting:** #192 Top Paid · Utilities (US App Store)

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


### Frequency Detector Analyzer

[App page](https://appshunter.io/ios/app/frequency-detector-analyzer/id6752298079)

This application transforms your device into a precise sound analysis tool. It offers real-time frequency detection, visualization, and data logging for musicians, engineers, and curious individuals. Gain clarity and accuracy in understanding the soundscape around you.

**Highlights:** Live frequency tuner, Spectrogram visualization, Automatic logging and CSV export, Customizable logging interval, Elegant and modern design, Reliable performance

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Frequency Detector Weekly Sub | $8.99 | per 7 days |
| Frequency Detector Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is Low Frequency Detector free?

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

### Is Frequency Detector Analyzer free?

Frequency Detector Analyzer is free to download, with in-app purchases available.

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

Frequency Detector Analyzer is rated higher. Low Frequency Detector averages 2.8 out of 5 from 6 ratings, while Frequency Detector Analyzer averages 4.3 from 20 ratings.

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

Neither Low Frequency Detector nor Frequency Detector Analyzer shows ads.

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

Low Frequency Detector ships an update every 9 months, and Frequency Detector Analyzer every 2 months. Most recently, Low Frequency Detector was updated on October 6, 2026 and Frequency Detector Analyzer on October 14, 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.*