# Audio Frequency Analyzer vs Sound Meter (Decibel)

The clearest difference is price: Sound Meter (Decibel) at Free against Audio Frequency Analyzer's $9.99. Sound Meter (Decibel) also leads on rating (4.5 vs 3.7) and ratings volume (3.3K vs 3). Audio Frequency Analyzer's advantage is ads (none vs shown) and review sentiment (60% vs 50%). On update cadence and in-app purchases there is nothing between them.

Sound Meter (Decibel) 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.

Sound Meter (Decibel) holds the better App Store score, 4.5 against 3.7. That said, the two scores are not equally well evidenced: Sound Meter (Decibel) has 3.3K ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 60% of Audio Frequency Analyzer's written reviews are positive against 50% of Sound Meter (Decibel)'s, so the app with the better star average is not the one people write more warmly about.

Audio Frequency Analyzer ships an update every 8 months, Sound Meter (Decibel) every 5 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Audio Frequency Analyzer | Sound Meter (Decibel) |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | [3.7 (3 ratings)](https://appshunter.io/ios/app/audio-frequency-analyzer/id684641742/reviews) | **[4.5 (3.3K ratings)](https://appshunter.io/ios/app/sound-meter-decibel/id1626613141/reviews)** |
| Number of ratings | 3 | **3.3K** |
| Positive reviews | **60.0% of reviews** | 50.3% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 8 months | **Every 5 months** |
| Monetization | Paid | **Ad-supported** |
| Size | 0 MB | 8 MB |
| Requires iOS | 26.2 | **14.1** |
| Devices | iPhone | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [TOON,LLC](https://appshunter.io/developer/633948723) | [UniCom Technology](https://appshunter.io/developer/1270764210) |

## 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


### Sound Meter (Decibel)

[App page](https://appshunter.io/ios/app/sound-meter-decibel/id1626613141)

This application measures and displays environmental noise levels in decibels. It offers various visual representations of the data, including gauges, graphs, and numerical readouts. Users can also save their measurement history.

**Highlights:** Measures decibel values, Displays noise reference, Shows min/avg/max dB, Graphical decibel display, Saves measurement records

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Works perfectly
- 👍 Easy to use and free
- 👍 Good simple UI
- 👍 Good basic sound level meter
- 👍 Very easy and simplified display

**What reviewers complain about**

- 🐛 Spelling mistake ('quiet' spelled as 'quite')
- 🐛 Inaccurate readings compared to other apps
- 🐛 Requires a subscription for basic recording
- 🐛 Imprecise metering, not a reliable tool
- 🐛 Doesn't work in split screen

**Reported bugs**

- Apple security alert displayed on a Google ad
- Readings are half of other apps
- Misspelled 'quiet' throughout the app

**Requested features**

- Add option to prevent screen timeout
- Add landscape mode
- Improve accuracy and calibration


## Frequently asked questions

### Is Audio Frequency Analyzer free?

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

### Is Sound Meter (Decibel) free?

Sound Meter (Decibel) is free to download, with no in-app purchases.

### Which has better reviews, Audio Frequency Analyzer or Sound Meter (Decibel)?

Sound Meter (Decibel) is rated higher. Audio Frequency Analyzer averages 3.7 out of 5 from 3 ratings, while Sound Meter (Decibel) averages 4.5 from 3.3K ratings.

### Do Audio Frequency Analyzer or Sound Meter (Decibel) have ads?

Sound Meter (Decibel) shows ads; Audio Frequency Analyzer does not.

### Which is updated more often, Audio Frequency Analyzer or Sound Meter (Decibel)?

Audio Frequency Analyzer ships an update every 8 months, and Sound Meter (Decibel) every 5 months. Most recently, Audio Frequency Analyzer was updated on November 1, 2026 and Sound Meter (Decibel) on November 3, 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.*