# Audio Frequency Analyzer vs Noise Guru

The clearest difference is price: Noise Guru at Free against Audio Frequency Analyzer's $9.99. Noise Guru also leads on rating (4.6 vs 3.7) and update cadence (monthly vs every 8 months). On ads, in-app purchases and device support there is nothing between them.

Noise Guru is free to download; Audio Frequency Analyzer costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Noise Guru holds the better App Store score, 4.6 against 3.7. That said, the two scores are not equally well evidenced: Noise Guru has 360 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 60% of Audio Frequency Analyzer's written reviews are positive against 88% of Noise Guru's.

Audio Frequency Analyzer ships an update every 8 months, Noise Guru monthly. The most recent releases landed on October 26, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Audio Frequency Analyzer | Noise Guru |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | [3.7 (3 ratings)](https://appshunter.io/ios/app/audio-frequency-analyzer/id684641742/reviews) | **[4.6 (360 ratings)](https://appshunter.io/ios/app/noise-guru-decibel-meter/id6444836813/reviews)** |
| Number of ratings | 3 | **360** |
| Positive reviews | 60.0% of reviews | **88.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Monthly** |
| Monetization | Paid | **Free** |
| Size | 0 MB | 15 MB |
| Requires iOS | 26.2 | **14.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [TOON,LLC](https://appshunter.io/developer/633948723) | [Andrei Serykh](https://appshunter.io/developer/1626886894) |

## What reviewers say

### Audio Frequency Analyzer

[App page](https://appshunter.io/ios/app/audio-frequency-analyzer/id684641742)

This real-time audio analyzer measures and evaluates sound environments with 1/3 octave band frequency response and FFT analysis. It supports calibration for high accuracy and is suitable for various audio testing and tuning applications.

**Highlights:** Real-time frequency spectrum response measurement (1/3 octave, 30 bands), FFT Analyzer, Observation frequency range: 20 - 23000 Hz, Calibration function for high accuracy, Supports built-in and external microphones, Snapshot and averaging functions

**In-app purchases:** none


### Noise Guru

[App page](https://appshunter.io/ios/app/noise-guru-decibel-meter/id6444836813)

Measure sound levels with precision to understand your environment and protect your hearing. Identify loud noises, monitor noise pollution, and find quiet spaces for recording. Features include a decibel dosimeter, background noise measurement, and geo-tagged recordings.

**Highlights:** Precise sound level metering (SPL), DB Dosimeter for noise exposure tracking, Background noise measurement, Noise pollution monitoring, Geo-tagged noise recordings, Unlimited recording duration

**In-app purchases:** none

**What reviewers like**

- 👍 Effective tool
- 👍 Clean interface
- 👍 Allows measuring loudness
- 👍 Visually appealing and easy to use
- 👍 Efficient and effective

**What reviewers complain about**

- 🐛 Accuracy issues compared to other apps
- 🔋 Can't play audio while using the app

**Reported bugs**

- Forced to leave a review to use the app
- Can't delete max values

**Requested features**

- Add frequency meter
- Add option to reset max/min values


## Frequently asked questions

### Is Audio Frequency Analyzer free?

Audio Frequency Analyzer costs $9.99, with no in-app purchases.

### Is Noise Guru free?

Noise Guru is free to download, with no in-app purchases.

### Which has better reviews, Audio Frequency Analyzer or Noise Guru?

Noise Guru is rated higher. Audio Frequency Analyzer averages 3.7 out of 5 from 3 ratings, while Noise Guru averages 4.6 from 360 ratings.

### Do Audio Frequency Analyzer or Noise Guru have ads?

Neither Audio Frequency Analyzer nor Noise Guru shows ads.

### Which is updated more often, Audio Frequency Analyzer or Noise Guru?

Audio Frequency Analyzer ships an update every 8 months, and Noise Guru monthly. Most recently, Audio Frequency Analyzer was updated on October 26, 2026 and Noise Guru on October 22, 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.*