# RTA Audio vs iAudioTool

The clearest difference is price: RTA Audio at Free against iAudioTool's $2.99. RTA Audio also leads on review sentiment (59% vs 34%) and rating (3.5 vs 3.3). iAudioTool's advantage is in-app purchases (none vs 1) and update cadence (every 2 months vs every 28 months). On ratings volume, ads, device support and iOS requirement there is nothing between them.

RTA Audio is free to download; iAudioTool costs $2.99 up front. RTA Audio sells 1 one-off in-app purchase. iAudioTool asks for nothing beyond the download.

RTA Audio holds the better App Store score, 3.5 against 3.3. Both are backed by a comparable volume of ratings — 32 and 13 respectively. Written reviews point the same way: 59% of RTA Audio's written reviews are positive against 34% of iAudioTool's.

RTA Audio ships an update every 28 months, iAudioTool every 2 months. Both last shipped on October 23, 2026.

## The numbers

| Metric | RTA Audio | iAudioTool |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[3.5 (32 ratings)](https://appshunter.io/ios/app/rta-audio/id525324684/reviews)** | [3.3 (13 ratings)](https://appshunter.io/ios/app/iaudiotool/id580740399/reviews) |
| Number of ratings | **32** | 13 |
| Positive reviews | **58.5% of reviews** | 34.5% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 28 months | **Every 2 months** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 2 MB | 1 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [New Ball s.r.o.](https://appshunter.io/developer/1178970340) | [Julian Bunn](https://appshunter.io/developer/580740402) |

## What reviewers say

### RTA Audio

[App page](https://appshunter.io/ios/app/rta-audio/id525324684)

Analyze audio in real-time with detailed frequency spectrum and waveform visualizations. Record and export your audio analysis results, including spectrograms and frequency tables, for sharing or archiving.

**Highlights:** Real-time audio analysis (FFT), Recording and offline processing, Spectrogram and waveform visualization, Exportable analysis reports (PDF), Adjustable resolution and frequency scale, Peak and RMS metering

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade to full version | $14.99 | one-time |


### 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


## Frequently asked questions

### Is RTA Audio free?

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

### Is iAudioTool free?

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

### Which has better reviews, RTA Audio or iAudioTool?

RTA Audio is rated higher. RTA Audio averages 3.5 out of 5 from 32 ratings, while iAudioTool averages 3.3 from 13 ratings.

### Do RTA Audio or iAudioTool have ads?

Neither RTA Audio nor iAudioTool shows ads.

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

RTA Audio ships an update every 28 months, and iAudioTool every 2 months. Most recently, RTA Audio was updated on October 23, 2026 and iAudioTool on October 23, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*