# Audio Frequency Analyzer vs Decibel Meter Ultra

The clearest difference is price: Decibel Meter Ultra at Free against Audio Frequency Analyzer's $9.99. Decibel Meter Ultra also leads on rating (4.6 vs 3.7) and update cadence (every 10 days vs every 8 months). Audio Frequency Analyzer's advantage is in-app purchases (none vs 7) and review sentiment (60% vs 43%). On ads and device support there is nothing between them.

Decibel Meter Ultra is free to download; Audio Frequency Analyzer costs $9.99 up front. Decibel Meter Ultra sells 4 in-app purchases, starting at $7.99 per 7 days. Audio Frequency Analyzer asks for nothing beyond the download.

Decibel Meter Ultra holds the better App Store score, 4.6 against 3.7. That said, the two scores are not equally well evidenced: Decibel Meter Ultra has 2.6K 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 43% of Decibel Meter Ultra'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, Decibel Meter Ultra every 10 days. The most recent releases landed on November 6, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Audio Frequency Analyzer | Decibel Meter Ultra |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | [3.7 (3 ratings)](https://appshunter.io/ios/app/audio-frequency-analyzer/id684641742/reviews) | **[4.6 (2.6K ratings)](https://appshunter.io/ios/app/decibel-meter-ultra/id1643525961/reviews)** |
| Number of ratings | 3 | **2.6K** |
| Positive reviews | **60.0% of reviews** | 43.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 10 days** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 0 MB | 92 MB |
| Requires iOS | 26.2 | **18.6** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | +12 |
| Developer | [TOON,LLC](https://appshunter.io/developer/633948723) | [Ultrafine](https://appshunter.io/developer/1558108175) |

## 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


### Decibel Meter Ultra

[App page](https://appshunter.io/ios/app/decibel-meter-ultra/id1643525961)

Measure, record, and analyze sound levels in your environment. This app offers precision metering, noise elimination tools, hearing protection features, and home audio calibration. It provides detailed reports and can be used with device microphones or external ones.

**Highlights:** Precision sound level metering, Noise logging and reporting, Hearing protection dosimeter, Fractional octave band analysis, Real-time analyzer, External microphone support

**Features:** iPhone Duo support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO Access | $7.99 | per 7 days |
| PRO Access | $11.99 | per month |
| PRO Access | $39.99 | per year |
| PRO Access | $39.99 | per year |

**What reviewers like**

- 🎨 Aesthetically pleasing design
- 🔍 Useful noise monitoring features
- 🔍 Ability to collect noise evidence

**What reviewers complain about**

- 💰 Expensive subscription pricing
- 🚫 Misleading free trial claims
- 🚫 Difficult to cancel subscription
- 🔍 Inconsistent noise level readings

**Reported bugs**

- Subscription charges continue after cancellation
- Subscription cancellation page doesn't load

**Requested features**

- Lower subscription pricing
- Improve subscription cancellation process


## Frequently asked questions

### Is Audio Frequency Analyzer free?

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

### Is Decibel Meter Ultra free?

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

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

Decibel Meter Ultra is rated higher. Audio Frequency Analyzer averages 3.7 out of 5 from 3 ratings, while Decibel Meter Ultra averages 4.6 from 2.6K ratings.

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

Neither Audio Frequency Analyzer nor Decibel Meter Ultra shows ads.

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

Audio Frequency Analyzer ships an update every 8 months, and Decibel Meter Ultra every 10 days. Most recently, Audio Frequency Analyzer was updated on November 6, 2026 and Decibel Meter Ultra on November 7, 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.*