# AudioToolsMax - Audio Test — Acoustic & dB Measurement Tool

> Professional audio test and measurement suite with all tools unlocked. (iPhone/iPad app by Andrew Smith.)

- Source: https://appshunter.io/ios/app/audiotoolsmax-audio-test/id1416864209 (this page in markdown: same URL + `.md`)
- Developer: [Andrew Smith](https://appshunter.io/developer/291822462)
- Category: Utilities, Music
- Price: $399.99
- Rating: 4.90/5 from 8 App Store ratings
- Age rating: 4+
- Requires: iOS 13.1 · 94 MB
- Languages: American English, French (France), German (Germany), Japanese, Polish, Chinese (Simplified, China), European Spanish, Swedish, Chinese (Traditional, Taiwan)
- Released: 2018-08-05
- Data updated: 2026-08-14
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/audiotoolsmax-audio-test/id1416864209/reviews.md

## What is AudioToolsMax?

AudioToolsMax is the complete professional audio test & measurement app with every tool completely unlocked and ready to use. Educational discounts are available under the Apple Educational Discount program.

AudioToolsMax includes all of the additional optional modules, like SoundSource, SPL Graph, SPL Traffic Light, LARSA, Transfer Function, STIPA, Impulse Response, and more. It's the full package.

We test every iOS device and calibrate the microphone level and frequency response for the best results. We have the ability to turn off the Apple low frequency filters, and on many devices we can measure up to 120 dB SPL.

Add iTestMic, iPrecisionMic, or iAudioInterface2 for a complete professional audio and acoustic test and measurement platform.

Actual reviews:

“...AudioTools is a “how did I ever live without it” app”.

“I think this application is the best I EVER purchased.”

“I have used many thousands of dollars of complicated test equipment that doesn’t measure up to this app suite.”

***** Included in the app price *****

* SPL Meter
A faithful reproduction of a classic analog SPL meter. Includes A and C weighting, and Fast and Slow ANSI decay modes. All filters meet or exceed ANSI type 1.

* RTA
A 1/3 and octave band Real Time Analyzer. Includes touch-GUI range control, a cursor, max/min bars, and noise curve overlays. 

* FFT
Detailed acoustic analysis, up to 32876 points. View full detail or smooth to 1/24, 1/6, 1/3 or octave. Includes cursor, scalable graphics, and peak tracking.

* Polarity
Speaker polarity checker. Route the test signal to a speaker, and read the polarity of the speaker on the screen.

* Delay Finder
Measures the time it takes for a pulse to return from a speaker. 

* Generator
Generates sine waves, square waves, white and pink noise.

* Line Level Tests
A line level measurement function and frequency counter.

* Audio Scope
A dual-channel audio oscilloscope that includes auto-triggering, variable gain and sweep rate, and storage of scope images.

* Recorder
A mono/stereo audio recorder with WAV and compressed formats and 8k-48k sample rate. Transfer files via WIFI.

* File transfer of results via wifi to PC / Mac.

* Audio Calculators

* Smaart® Tools - Single channel module.
The power of Smaart® on a mobile platform. Includes RTA graphs to 1/48th octave and Spectrograph. Split-screen on iPad.

* Transfer Function -- Requires 2-channel interface. 
Two-channel FFT-based measurement. Allows you to analyze sound system performance with music or pink noise as the signal source.

* ETC
Energy Time Curve. Plot decay of an impulse over time, and compute RT60 time. Internal or External trigger.

* Impulse Response
Record and analyze an impulse or sine sweep, compute octave and 1/3 octave ETC, T30, C50, C80, CT, Definition.

* LARSA
Fast and accurate sine-sweep measurement of loudspeakers and rooms.

* SPL Pro
Digital SPL meter with ANSI Slow, Fast, Peak, and Impulse mode, along with LEQ. Includes A and C weighting, and all 10 octave band filters.

* SPL Graph
Plot second-by-second SPL level for up to 24 hours, and optionally record the audio. Also, add the optional Octave Band Logging upgrade to elevate this tool to rival any professional logging SPL Meter.

* SPL Traffic Light
Monitor live sound levels SPL and Leq and see status in a simple green-yellow-red display.

* STIPA Speech Intelligibility
Meets the current NFPA code standards for testing evac systems and schools.

* Speaker Distortion
Measure THD+n of any driver.

* THD+n (requires iAudioInterface)

* Impedance Meter and Plot (requires iAudioInterface)

* Phase Meter

* Amplitude Sweep

## Key features

- SPL Meter
- Real Time Analyzer (RTA)
- FFT Analysis
- Speaker Polarity Checker
- Delay Finder
- Audio Oscilloscope
- Audio Calculators


## Frequently asked questions about AudioToolsMax

### What audio measurement tools are included in AudioToolsMax?

AudioToolsMax includes a comprehensive suite of tools such as an SPL Meter, Real Time Analyzer (RTA), FFT, Polarity checker, Delay Finder, Generator, Line Level Tests, Audio Scope, Recorder, and various advanced modules like Smaart® Tools, Transfer Function, ETC, Impulse Response, LARSA, and SPL Pro.

### Is AudioToolsMax suitable for professional use?

Yes, AudioToolsMax is designed as a complete professional audio test and measurement app. It calibrates microphones for best results and meets or exceeds ANSI type 1 standards for its filters, making it suitable for professional applications.

### Does AudioToolsMax support external microphones or interfaces?

Yes, AudioToolsMax can be used with external hardware like iTestMic, iPrecisionMic, or iAudioInterface2 to create a complete professional audio and acoustic test and measurement platform.

### How accurate are the measurements in AudioToolsMax?

The app tests every iOS device and calibrates microphone levels and frequency response for optimal results. It can also disable Apple's low-frequency filters and measure up to 120 dB SPL on many devices.

### Can I transfer my audio test results from AudioToolsMax?

Yes, AudioToolsMax allows for file transfer of results via Wi-Fi to a PC or Mac, facilitating easy data management and analysis.

### What is the price of AudioToolsMax?

AudioToolsMax is a paid application with a price of $399.99. Educational discounts may be available through the Apple Educational Discount program.

### Does AudioToolsMax have ads?

No, AudioToolsMax does not contain advertisements. It is a paid application where all tools are completely unlocked and ready to use upon purchase.

### What devices is AudioToolsMax compatible with?

AudioToolsMax is compatible with iPhone, iPad, and iPod devices.

## Version history (last 5 releases)

### 4.9 — 2026-08-09

-Bug fixes and stability improvements 
-Fixes Impulse Response not recording audio

### 4.8 — 2026-05-02

-Bug fixes and stability improvements

### 4.7 — 2025-12-20

-Updated Impulse Response with Group Delay
-Bug fixes and stability improvements

### 4.6 — 2025-11-24

**AudioTools, #1 audio test & measurement platform
New in this update:
-Fixed potential crash in ACU module
-Fixed Ln values to not update while SPL Graph is paused
-Improved SPL Dashboard GUI on iOS 26
-Bug fixes and stability improvements

### 4.5 — 2025-06-14

**AudioTools, #1 audio test & measurement platform
New in this update:
-Changed SPL Graph emails to send from data@studiosixdigital.com to comply with server restrictions
-Fixed Dual SPL Traffic Light color changes to account for dB offset
-Added support for new iOS versions calibration
-Fixed mic range not storing and recalling for internal mic after force-quit
-More buig fixes and stability improvements

## Apps similar to AudioToolsMax

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Decibel X:dB Sound Level Meter](https://appshunter.io/ios/app/decibel-xdb-sound-level-meter/id448155923) | 4.6 (160,618) | Free | Utilities |
| [dB Meter & Spectrum Analyzer](https://appshunter.io/ios/app/db-meter-and-spectrum-analyzer/id733773616) | 4.7 (865) | $29.99 | Utilities |
| [Decibel : dB sound level meter](https://appshunter.io/ios/app/decibel-db-sound-level-meter/id1227650795) | 4.6 (36,106) | Free | Utilities |
| [Sonic Tools SVM](https://appshunter.io/ios/app/sonic-tools-svm/id1245046029) | 4.7 (6,672) | Free | Utilities |
| [Decibel X PRO: dBA Noise Meter](https://appshunter.io/ios/app/decibel-x-pro-dba-noise-meter/id1257651611) | 4.7 (6,888) | $69.99 | Utilities |
| [Noise Guru: Decibel Meter](https://appshunter.io/ios/app/noise-guru-decibel-meter/id6444836813) | 4.6 (299) | Free | Utilities |

## More apps by Andrew Smith

- [Speaker Polarity](https://appshunter.io/ios/app/speaker-polarity/id293263027)
- [SPL](https://appshunter.io/ios/app/spl/id293573990)
- [RTA](https://appshunter.io/ios/app/rta/id298839433)
- [FFT](https://appshunter.io/ios/app/fft/id298840058)
- [RT60](https://appshunter.io/ios/app/rt60/id298840320)
- [Generator](https://appshunter.io/ios/app/generator/id298840802)

All apps by Andrew Smith: https://appshunter.io/developer/291822462

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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 2026-08-14.*