# The Audio Toolbox — Multi-tool for Sound Engineers

> Multi-tool for live sound engineers with QLab control, MIDI, and audio calculations. (iPhone/iPad app by Innovate Audio LTD.)

- Source: https://appshunter.io/ios/app/the-audio-toolbox/id1063704615 (this page in markdown: same URL + `.md`)
- Developer: [Innovate Audio LTD](https://appshunter.io/developer/1063704614)
- Category: Utilities, Productivity
- Price: $3.99
- Rating: 4.90/5 from 33 App Store ratings · 18 written reviews indexed
- Age rating: 4+
- Requires: iOS 14.0 · 8 MB
- Languages: American English
- Released: 2015-12-11
- Data updated: 2026-08-24
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/the-audio-toolbox/id1063704615/reviews.md

## What is The Audio Toolbox?

The Audio Toolbox contains eight powerful functions, designed to help Live Sound Engineers:

QLab Control:
The Audio Toolbox searches the current WiFi Network for any computers running QLab. Once the QLab workspace is discovered you can perform basic transport controls on the workspace, such as start, stop and select cues. This has been made possible by the wonderful team at Figure 53, who have open sourced their OSC API, so thank you Figure 53.

MIDI Tester:
The MIDI Tester works in conjunction with any Made For iPhone compatible MIDI Interface, as well as Network and Bluetooth MIDI. It displays all the MIDI received into the phone, and is designed to help when fault finding any connectivity issues. As well as reading all standard MIDI messages, the MIDI Tester also reads all MIDI Show Control commands!

MIDI Pad:
MIDI Pad provides six customisable buttons, which can be configured to send standard MIDI messages to the MIDI Output of the phone. MIDI Pad works either wirelessly, over Bluetooth or WiFi, or via any connected MIDI Interface. You can use the MIDI Pad to trigger cues in QLab, add Macros to your DiGiCo or fire samples in Ableton Live.

Delay Time Calculator
Work out the delay times for all your loudspeakers. Just input a distance in either meters or feet and it will give you a time in milliseconds. You can even adjust the results based on the ambient temperature.

Time Calculator:
Time Calculator allows you to add, subtract, multiply or divide times together. Unlike any other app we can find on the App Store, Time Calculator can calculate time in milliseconds. Work with video? Time Calculator also works in video frames, supporting eight different frame rates. If you need to translate time between video frames and milliseconds, Time Calculator can do that too.

Angle Recorder:
Ever got into work to discover some of your speakers have been accidentally knocked? You can now record the angles of as many speakers as you like in one handy list. Want to check if any of them have moved? just click on an angle, hold the phone up to the speaker and the app will compare the results. The screen will go green and the phone will beep when you are all matched up.

RF Toolbox:
With RF Toolbox you can record all your transmitter information, including actor, character, frequency and gain information, in one place. You can record notes on each of your transmitters, for things like fitting and colouring information. Results are searchable by any of the recorded data. When you input frequency information, RF Toolbox will calculate the optimum aerial length, as well as the transmission channel.

Clicker:
Finally, for fine tuning your delay times, The Audio Toolbox includes a built in click sound! The click will loop for as long as you like, and interacts with the audio controls on the rest of the phone, so you can pause it from the lock screen.

## Key features

- QLab remote control
- MIDI message testing and sending
- Delay time calculation
- Time arithmetic with frame rates
- Speaker angle recording
- RF transmitter data management
- Built-in metronome clicker

## Recent user reviews (10 of 18)

All indexed reviews: https://appshunter.io/ios/app/the-audio-toolbox/id1063704615/reviews.md

### 1/5 — Useless

*2024-12-17, version 2.6*

I just bought this app to control qlab 5 for a show today and it can’t even open the group dropdown so basically I can’t do anything with it!!

### 3/5 — Missing wave length and frequency

*2024-03-10*

I am missing frequency / wave length calculations in the delay section. 
1/2 and 1/4 wave length of a frequency according to the delay and distance time would also be cool.

### 5/5 — Great set of tools for live audio production.

*2022-03-28*

Very useful.

### 5/5 — Absolutely indispensable!

*2020-11-22*

Crucial, hugely useful.

### 5/5 — Essential, no reason not to download

*2020-04-29*

Everything really useful, especially the QLab remote. The official one it over £30 and this one is free!

### 5/5 — Indispensable

*2019-08-19*

Génial

### 5/5 — 👍

*2019-04-17*

The Audio Tool Box is a great app for sound engineers. I use this at least once a week for my job. It’s incredibly handy and 100% free. 
Thanks to Daniel Higgott for making it!

**Developer response:** Thank you so much! I really appreciate people taking the time to write reviews. So glad you are finding The Audio Toolbox useful.

Dan

### 5/5 — 好用

*2019-01-02*

功能，强大非常的好用，感谢开发者。

### 5/5 — Very handy

*2018-11-12*

Some handy features. Worth downloading

### 5/5 — Task specific for theatre sound

*2018-07-06*

This app has been really well thought through and provides many useful functions for the very specific requirements of theatre sound engineers.
It’s been very useful so far, and the new functions look very exciting.

## Frequently asked questions about The Audio Toolbox

### What is The Audio Toolbox?

The Audio Toolbox is a paid utility app designed for live sound engineers. It offers eight distinct functions to assist with various aspects of audio setup and management.

### Does The Audio Toolbox have ads?

No, The Audio Toolbox does not contain advertisements. It is a paid application that provides its full functionality without interruptions.

### What devices does The Audio Toolbox support?

The Audio Toolbox is available for iPhone, iPad, and iPod touch devices, offering a versatile solution across Apple's mobile ecosystem.

### How often is The Audio Toolbox updated?

The Audio Toolbox was last updated on November 17, 2022, with version 2.6. This indicates a history of development and maintenance by the developer.

### What is the age rating for The Audio Toolbox?

The Audio Toolbox has an age rating of 4+, making it suitable for a wide range of users, including younger individuals interested in audio technology.

### Can The Audio Toolbox help with QLab?

Yes, The Audio Toolbox includes a QLab Control feature that allows you to search for and perform basic transport controls on QLab workspaces over your WiFi network.

### What kind of time calculations can The Audio Toolbox perform?

The Time Calculator within The Audio Toolbox allows for addition, subtraction, multiplication, and division of times. It uniquely supports calculations in milliseconds and video frames across eight different frame rates.

### How does The Audio Toolbox handle MIDI?

The app features a MIDI Tester to display received MIDI messages for troubleshooting, and a MIDI Pad with six customizable buttons to send standard MIDI messages wirelessly or via a MIDI interface.

## Version history (last 5 releases)

### 2.6 — 2022-11-17

- Adds support for QLab 5!

### 2.5.1 — 2020-09-30

New in version 2.5:

- Improved Delay Time Calculator, you can now input two distances and the calculator will work out the difference between them. The delay time is now calculated on the difference between the two distances.

- Updates to support iOS 14

New in 2.5.1:

- Minor bug fixes and performance improvements

### 2.5 — 2020-09-15

- Improved Delay Time Calculator, you can now input two distances and the calculator will work out the difference between them. The delay time is now calculated on the difference between the two distances.

- Updates to support iOS 14

### 2.4 — 2019-11-06

- The Audio Toolbox user interface has been rebuilt from the ground up to support Dark Mode in iOS 13, enjoy!

### 2.3.3 — 2019-10-09

- Fixes a bug that crashed the app when attempting to use the clicker in iOS 13
- Minor UI updates to reflect style changes introduced in iOS 13

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## Related topics

[the audio toolbox](https://appshunter.io/ios/topics/the-audio-toolbox) · [audio engineering](https://appshunter.io/ios/topics/audio-engineering)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-24.*