# Frequency Analyzer vs Decibel Meter

The clearest difference is review sentiment: Decibel Meter at 70% against Frequency Analyzer's 0%. Decibel Meter also leads on rating (4.8 vs 4.5). Frequency Analyzer's advantage is update cadence (every 8 days vs monthly) and ratings volume (166 vs 50). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Frequency Analyzer sells 11 in-app purchases, starting at $2.99 per 7 days and Decibel Meter sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Decibel Meter holds the better App Store score, 4.8 against 4.5. Both are backed by a comparable volume of ratings — 166 and 50 respectively. Written reviews point the same way: 0% of Frequency Analyzer's written reviews are positive against 70% of Decibel Meter's.

Frequency Analyzer ships an update every 8 days, Decibel Meter monthly. The most recent releases landed on September 21, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Frequency Analyzer | Decibel Meter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (166 ratings)](https://appshunter.io/ios/app/frequency-analyzer/id6468837339/reviews) | **[4.8 (50 ratings)](https://appshunter.io/ios/app/decibel-meter-db-noise-level/id6744018521/reviews)** |
| Number of ratings | **166** | 50 |
| Positive reviews | 0.0% of reviews | **70.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 8 days** | Monthly |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 35 MB | 176 MB |
| Requires iOS | 17.2 | **16.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Manfred Kuegel](https://appshunter.io/developer/1520736594) | [PaoApps](https://appshunter.io/developer/1746019535) |

## What reviewers say

### Frequency Analyzer

[App page](https://appshunter.io/ios/app/frequency-analyzer/id6468837339)

Transform your device into a professional audio analysis tool with advanced FFT analysis, SPL monitoring, and detailed visualizations. Record, analyze, and export audio data with precision calibration and multiple weighting filters.

**Highlights:** Real-time FFT analysis, Calibrated SPL measurements, 32-bit float audio recording, Synchronized video recording, Spectrogram and octave band analysis, Export WAV, CSV, images, and videos

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

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Frequency Analyzer Pro Weekly | $2.99 | per 7 days |
| Frequency Analyzer Pro Monthly | $3.99 | per month |
| Frequency Analyzer Pro Monthly | $3.99 | per month |
| Frequency Analyzer Pro Monthly | $4.99 | per month |
| Frequency Analyzer Pro Monthly | $4.99 | per month |
| Frequency Analyzer Pro Monthly | $4.99 | per month |
| Frequency Analyzer Pro Annual | $29.99 | per year |
| Frequency Analyzer Pro Annual | $44.99 | per year |
| Frequency Analyzer Pro Annual | $44.99 | per year |
| Frequency Analyzer Pro Annual | $44.99 | per year |
| Pro access for lifetime | $89.99 | one-time |


### Decibel Meter

[App page](https://appshunter.io/ios/app/decibel-meter-db-noise-level/id6744018521)

This tool transforms your iPhone into a real-time sound level meter. It measures and displays environmental noise in decibels, helping you monitor sound at home, work, or outdoors. Protect your hearing by detecting loud noises and staying aware of your sound environment.

**Highlights:** Real-time decibel measurement, Dynamic graph display, Min/Max/Average sound levels, Measuring timer, Pause and Reset buttons, Noise pollution checks

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Access with Trial | $2.99 | per 7 days |
| Weekly Access | $2.99 | per 7 days |
| Yearly Access | $17.99 | per year |


## Frequently asked questions

### Is Frequency Analyzer free?

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

### Is Decibel Meter free?

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

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

Decibel Meter is rated higher. Frequency Analyzer averages 4.5 out of 5 from 166 ratings, while Decibel Meter averages 4.8 from 50 ratings.

### Do Frequency Analyzer or Decibel Meter have ads?

Neither Frequency Analyzer nor Decibel Meter shows ads.

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

Frequency Analyzer ships an update every 8 days, and Decibel Meter monthly. Most recently, Frequency Analyzer was updated on September 21, 2026 and Decibel Meter on September 10, 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.*