# iAudioTool vs Audio Spectrum Analyzer dB RTA

The clearest difference is price: Audio Spectrum Analyzer dB RTA at Free against iAudioTool's $2.99. Audio Spectrum Analyzer dB RTA also leads on rating (4.5 vs 3.3) and ratings volume (3K vs 13). iAudioTool's advantage is in-app purchases (none vs 2) and update cadence (every 2 months vs every 5 months). On ads, device support and iOS requirement there is nothing between them.

Audio Spectrum Analyzer dB RTA is free to download; iAudioTool costs $2.99 up front. Audio Spectrum Analyzer dB RTA sells 2 in-app purchases, starting at $1.99 per month. iAudioTool asks for nothing beyond the download.

Audio Spectrum Analyzer dB RTA holds the better App Store score, 4.5 against 3.3. That said, the two scores are not equally well evidenced: Audio Spectrum Analyzer dB RTA has 3K ratings behind it against 13, so its average is the more settled of the two. Written reviews point the same way: 34% of iAudioTool's written reviews are positive against 44% of Audio Spectrum Analyzer dB RTA's.

iAudioTool ships an update every 2 months, Audio Spectrum Analyzer dB RTA every 5 months. The most recent releases landed on November 1, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | iAudioTool | Audio Spectrum Analyzer dB RTA |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [3.3 (13 ratings)](https://appshunter.io/ios/app/iaudiotool/id580740399/reviews) | **[4.5 (3K ratings)](https://appshunter.io/ios/app/audio-spectrum-analyzer-db-rta/id1281873790/reviews)** |
| Number of ratings | 13 | **3K** |
| Positive reviews | 34.5% of reviews | **43.6% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 5 months |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 1 MB | 24 MB |
| Requires iOS | 16.0 | **15** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Julian Bunn](https://appshunter.io/developer/580740402) | [Marina Polyanskaya](https://appshunter.io/developer/1519482916) |

## What reviewers say

### iAudioTool

[App page](https://appshunter.io/ios/app/iaudiotool/id580740399)

This app provides advanced audio analysis tools for professionals and enthusiasts. It includes features like RT60, SPL metering, spectrum analysis, and signal generation to help you understand and optimize sound environments. Calibration features ensure accurate measurements for various audio applications.

**Highlights:** RT60 measurement, SPL meter, Spectrum analyzer, Signal generator, Polarity checker, ISO Octave Calibration

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

**In-app purchases:** none


### Audio Spectrum Analyzer dB RTA

[App page](https://appshunter.io/ios/app/audio-spectrum-analyzer-db-rta/id1281873790)

Analyze sound frequencies and decibel levels with this advanced tool. Ideal for tuning audio systems, it offers real-time spectrum analysis and sound metering for various applications.

**Highlights:** Octave Band Real-Time Analyzer, FFT Plot - Fast Fourier Transform, Integrated Sound Level Meter (dB-A), Multispectral Harmonic Analyzer, Hold Max and Min Peaks, Various Window Functions

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Access | $1.99 | per month |
| Spectrum Analyzer Pro | $7.99 | one-time |

**What reviewers like**

- 🚀 Excellent audio analysis tool
- 👍 Clean and intuitive interface
- 💡 Customizable frequency range
- 🔍 Accurate real-time spectrum visualization

**What reviewers complain about**

- 🐛 Compatibility issues with newer iOS versions
- 🔁 Constant prompts to upgrade to Pro version
- 🔌 High battery consumption
- 📊 Inaccurate frequency tracking in some modes

**Reported bugs**

- Freezing and crashing on certain devices
- Incorrect frequency readings in Octave RTA mode
- Inability to switch between microphone sources

**Requested features**

- External microphone support
- Ability to save and compare measurement results
- More detailed instructions and tutorials
- Vertical orientation option


## Frequently asked questions

### Is iAudioTool free?

iAudioTool costs $2.99, with no in-app purchases.

### Is Audio Spectrum Analyzer dB RTA free?

Audio Spectrum Analyzer dB RTA is free to download, with in-app purchases available.

### Which has better reviews, iAudioTool or Audio Spectrum Analyzer dB RTA?

Audio Spectrum Analyzer dB RTA is rated higher. iAudioTool averages 3.3 out of 5 from 13 ratings, while Audio Spectrum Analyzer dB RTA averages 4.5 from 3K ratings.

### Do iAudioTool or Audio Spectrum Analyzer dB RTA have ads?

Neither iAudioTool nor Audio Spectrum Analyzer dB RTA shows ads.

### Which is updated more often, iAudioTool or Audio Spectrum Analyzer dB RTA?

iAudioTool ships an update every 2 months, and Audio Spectrum Analyzer dB RTA every 5 months. Most recently, iAudioTool was updated on November 1, 2026 and Audio Spectrum Analyzer dB RTA on October 29, 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.*