# Frequency Detector Analyzer vs Decibel Meter：Noise Detector

The clearest difference is review sentiment: Decibel Meter：Noise Detector at 100% against Frequency Detector Analyzer's 0%. Decibel Meter：Noise Detector also leads on rating (5.0 vs 4.4) and update cadence (every 5 days vs every 2 months). Frequency Detector Analyzer's advantage is ads (none vs shown) and ratings volume (23 vs 2). On price, in-app purchases and monetization model there is nothing between them.

Both are free to download. Frequency Detector Analyzer sells 2 in-app purchases, starting at $8.99 per 7 days and Decibel Meter：Noise Detector sells 4 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Decibel Meter：Noise Detector holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Frequency Detector Analyzer has 23 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 0% of Frequency Detector Analyzer's written reviews are positive against 100% of Decibel Meter：Noise Detector's.

Frequency Detector Analyzer ships an update every 2 months, Decibel Meter：Noise Detector every 5 days. The most recent releases landed on October 28, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Frequency Detector Analyzer | Decibel Meter：Noise Detector |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (23 ratings)](https://appshunter.io/ios/app/frequency-detector-analyzer/id6752298079/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/decibel-meternoise-detector/id6779128095/reviews)** |
| Number of ratings | **23** | 2 |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 5 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 65 MB | 13 MB |
| Requires iOS | **15.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [NEURASYNC](https://appshunter.io/developer/1639101560) | [Offline Music](https://appshunter.io/developer/1823656102) |

## What reviewers say

### 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 |


### Decibel Meter：Noise Detector

[App page](https://appshunter.io/ios/app/decibel-meternoise-detector/id6779128095)

This app provides real-time decibel readings, sound level monitoring, and voice-activated noise recording. It allows users to document noise levels with video evidence, including decibel watermarks and timestamps, all processed on-device for privacy.

**Highlights:** Real-time dB meter with max, min, average, Voice-activated noise recording, Video recording with decibel watermark, Timestamp and GPS overlay, On-device audio/video processing, Live Activity on Lock Screen

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DecibelPro Premium Weekly | $2.99 | per 7 days |
| DecibelPro Premium Monthly | $9.99 | per month |
| DecibelPro Premium Yearly | $19.99 | per year |
| DecibelPro Ads Free | $2.99 | one-time |


## Frequently asked questions

### Is Frequency Detector Analyzer free?

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

### Is Decibel Meter：Noise Detector free?

Decibel Meter：Noise Detector is free to download, with in-app purchases available.

### Which has better reviews, Frequency Detector Analyzer or Decibel Meter：Noise Detector?

Decibel Meter：Noise Detector is rated higher. Frequency Detector Analyzer averages 4.4 out of 5 from 23 ratings, while Decibel Meter：Noise Detector averages 5.0 from 2 ratings.

### Do Frequency Detector Analyzer or Decibel Meter：Noise Detector have ads?

Decibel Meter：Noise Detector shows ads; Frequency Detector Analyzer does not.

### Which is updated more often, Frequency Detector Analyzer or Decibel Meter：Noise Detector?

Frequency Detector Analyzer ships an update every 2 months, and Decibel Meter：Noise Detector every 5 days. Most recently, Frequency Detector Analyzer was updated on October 28, 2026 and Decibel Meter：Noise Detector on October 13, 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.*