What’s New

Version 11.2

AudioTools #1 Audio Test & Measurement App

New in this release:
- General bug fixes and stability improvements
- Improved operation of AudioTools Wireless
- Fixed Impedance Sweep screen resetting when saving a photo (activity indicator)
- Fixed bugs in AudioToolsWireless
- Fixed: Removed Device info button which locked ATW
- Fixed: crash on FFT save using AT Wireless and iPrecisionMic
- Fixed: ATW sample rate, calibration issues.
- Added: ATW connect improved
- Fixed: ATW 24-bit mode
- Added debugging ID field to settings page
- Added remote log tracker
- Adjusted iPrecisionMic and uPrecisionMic gains for new mics
- Fixed: STC results box was too small
- Added: Support for new uPrecisionMic calibration and gain ranges
- Fixed: Changing calibration hi/low from mic selector did not stick
- Fixed: FFT size and resolution text removed from portrait mode
- Fixed: ScreenSize: background mode bug fixed

Ratings and Reviews

4.8 out of 5
2.4K Ratings

2.4K Ratings

BanderaT ,

Almost every tool you will ever need

I have used this app for setting up sound systems (pinpointing feed back quick and easy), tuning speaker cabinets, mastering Cds. You will need more than this but its another tool. Few jobs can be done with just one tool. Yes to make some things easier you will need to purchase some additional tools. Still When a mechanic buys a tool box he generally adds more tools. No doubt your ears are your most important tools that you have, but this suit of apps are definitely a huge help. With this app you get a lot for 20 bucks.
The additional modules make a complete tool box. With the ability to see what you hearing.

Frankdog51 ,

Some calculations are wrong.

I REALKY WANTED THIS APP TO WORK TO SAVE ME TIME ANALYZING ROOM DESIGN. I CAN’T TRUST IT!! In room mode calc - for an example - this calculator is not consistent with most university calculators I can find through the series of frequencies you need to have to design room dimensions. Kind of difficult for me to put trust in this. As in most coding that’s heavy in multiple simple mathematical computations it is quite easy to make mistakes. I have bought a few of the sections from this company because some of them are handy and fast but I don’t trust ANY of the computations in this app because of the errors I have found. Ho to a good acoustical engineering college site - the european colleges are the best but you will have to convert to meters a lot but this is something that you can learn to do quickly with google calculator, even if you are a math dunce. It is probably going to be difficult for most people to analyze all these numbers in a full mathematical stat output but if you take your time you will - I hope - see the patterns. Just methodically look for numbers being close together. Acoustics are for math wizards, I guess, but it is a damned shame these people don’t really understand math and/or are sloppy coders. Is this app just another “money maker” for a sloppy coder?? There are far more sloppy coders than math wizard coders out there. Oh well, back to the spreadsheets. This IS ok for on-the-run pocket calculations but don’t trust it.

Developer Response ,

Thanks for your feedback, we would like to connect with you to see where you are finding discrepancies. We work hard to get all of the modules to pass ISO Type One certification, but if there is something we have missed we will surely correct it. Please email us on, as we can't get information from the reviews.

Dfghhjjjjhgfffgg ,

Awesome app

I’ve used this app for years now and have not rated it but it has always been up in the 4-5 star range. Great updates and quick to fix any bugs. I thought I bought the SPL pro once but it never transferred to my newer devices. I could be wrong it was quite a while ago, but everything else has always transferred with all my new devices. I found that there is an option to restore purchases but I did have to click the SPL pro button first for the choice to restore to come up.
Andrew did respond but I had already figured it out. Thanks for your help and quick response.

Developer Response ,

Everything should come back with the Restore Purchases function, unless you had some in-apps that were bought from another App Store account.


Andrew Smith
226.4 MB

Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, French, German, Japanese, Polish, Simplified Chinese, Swedish

Age Rating
Rated 4+
© Andrew Smith
In-App Purchases
  1. SPL Graph Module $9.99
  2. SPL Pro Module $7.99
  3. Polarity Test Module $3.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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