# Audio Toolbox vs AU EngineCore

The clearest difference is price: Audio Toolbox at $3.99 against AU EngineCore's $22.99. Audio Toolbox also leads on iOS requirement (13 vs 16.6). AU EngineCore's advantage is update cadence (weekly vs every 8 months). On ads, in-app purchases and device support there is nothing between them.

Audio Toolbox costs $3.99 and AU EngineCore $22.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Audio Toolbox ships an update every 8 months, AU EngineCore weekly. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Audio Toolbox | AU EngineCore |
| --- | --- | --- |
| Price | **$3.99** | $22.99 |
| Rating | **[5.0 (7 ratings)](https://appshunter.io/ios/app/audio-toolbox/id1353387223/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Weekly** |
| Monetization | Paid | — |
| Size | 3 MB | 13 MB |
| Requires iOS | **13** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [4Pockets.com](https://appshunter.io/developer/370131860) | [Antonio Sorin TASU](https://appshunter.io/developer/1883473854) |

## What reviewers say

### Audio Toolbox

[App page](https://appshunter.io/ios/app/audio-toolbox/id1353387223)

This app provides a comprehensive suite of audio analysis tools, including a tone generator, oscilloscope, and FFT analysis engine. It allows users to create and analyze various waveforms, detect frequencies, and tune instruments with high accuracy.

**Highlights:** Tone Generator (20Hz-22KHz), Multiple Waveform Options, Fast Fourier Analysis, Audio Oscilloscope, Frequency and Note Detection, SPL Meter with LEQ, CSV Data Export

**Features:** macOS Compatibility

**In-app purchases:** none


### AU EngineCore

[App page](https://appshunter.io/ios/app/au-enginecore/id6766300671)

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

**In-app purchases:** none


## Frequently asked questions

### Is Audio Toolbox free?

Audio Toolbox costs $3.99, with no in-app purchases.

### Is AU EngineCore free?

AU EngineCore costs $22.99, with no in-app purchases.

### Do Audio Toolbox or AU EngineCore have ads?

Neither Audio Toolbox nor AU EngineCore shows ads.

### Which is updated more often, Audio Toolbox or AU EngineCore?

Audio Toolbox ships an update every 8 months, and AU EngineCore weekly. Most recently, Audio Toolbox was updated on November 6, 2026 and AU EngineCore on October 31, 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.*