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AudioTools, dB, Sound & Audio

AudioTools, dB, Sound & Audio

RTA, Acoustics Measurement SPL

5K ratings
337 reviews
#34 in paid Music
🔧 Utilities
🎵 Music
$19.99
In-App Purchases

Details

  • Released
  • Updated
  • September 8, 2009
  • July 15, 2026

Features

Developer

Andrew Smith
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🧾$2.99 - $49.99
In-App Purchase↘︎
📉no. 34
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About

This professional audio analysis app offers a comprehensive suite of tools for acoustic measurements, including SPL, RTA, and FFT. It calibrates device microphones for accurate results and allows for the addition of powerful optional modules for advanced analysis.

✓SPL Meter with A/C weighting
✓Real Time Analyzer (RTA)
✓Fast Fourier Transform (FFT) analysis
✓Speaker Polarity Test
✓Audio Oscilloscope
✓Signal Generator
✓Audio Recorder
Show original description

What users say

Summarized from real user reviews of AudioTools, dB, Sound & Audio. Based on 5K reviews and a 4.8/5 average, it highlights the 5 positives and 5 negatives reviewers mention most about this Music app.

Positive things

  • 👍Useful audio tools
  • 🚀Regularly updated
  • 💡Industry-standard features
  • 👍Accurate measurements
  • 👍Great support

Negative things

  • 🔒Many features locked behind paywall
  • 🐛Buggy iOS port
  • 🔒Expensive in-app purchases
  • 🐛Inconsistent functionality
  • 🐛Microphone issues
See all reviews
+1

What's New in AudioTools, dB, Sound & Audio

18.8

July 15, 2026

**AudioTools, #1 audio test and measurement app New in this release: -Fixed iAudioInterface2 Mono/Balanced setting not persisting -Fixed FFT plot disappearing after changing channels -Improved grphics processing with new Metal engine -Fixed missing measurement tables in PDF reports -Fixed speaker tones stacking during Polarity and SPL tests -Improved FFT test tones for subwoofer measurements -Fixed saved subwoofer FFT plots drawing at the wrong level -Expanded FFT crossover point choices (80 Hz to 2 kHz) -Initial and Final tests now both appear on RSP System FFT plots -Multi-Channel RT/FR results now support Initial and Final measurements -Report groups all Multi-Channel results together, with change-vs-Initial columns -Fixed Impedance Sweep frequency scale after device rotation -Fixed truncated dB values in SPL Pro -Added HAA CinemaTools waterfall plot to multi-channel functions -Added true SPL level to Multi-channel FR plot -Improved FFT Normalization -Bug fixes and stability improvements

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Subscription plans

All-In Module Access

Unlock all modules (except third-party apps)

$9.991 Month
7 Days trial
How to cancel AudioTools, dB, Sound & Audio subscription ⁉️
22

In-App Purchases

$9.99

SPL Graph Module

Record a graph of SPL level over time. Optionally also record the audio. Use A or C weighting, or any of 10 octave band filters. Compute LEQ of the graph. Save graph / audio, and later recall the graph, and use the cursor to listen to audio at any time.

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Charts

Top Paid

📉 34-5

Music

This app dropped -5 positions in Music chart.

Last updated on July 19, 2026.

User reviews

Most RecentHighest RatedLowest Rated

Must have

Must have
SWRmobileProductionsSWRmobileProductions

Vintage57

Very good tool for all forms of audio tools for amateur audiophiles. Can’t say how these tools fit the needs of audio professionals
Sceptic101Sceptic101

Buyer beware

It’s been a while since I paid upfront for a $20 app, only to be surprised by the requirement to also pay 9.99/mo in order for any of the tools to work.

And you have to subscribe just to confirm that the tools don’t do what you want anyway.
xxxNESxxxxxxNESxxx

I’ve had AudioTools since its inception

Don’t blink even one more time, buy… build…bombshell value!!!!

( AES member since 1986 )
nuff said

( oh ok, clientele includes Kiss, Journey, Sammy Hagar, Trans Siberian eeeeyup).

“U wanted the best? You got the best! BattleShow proven, Boom “
Tommy Taze BoomTommy Taze Boom

Smaart tools

Started using smaart tools with the dual view as a lightweight alternative to using my full smaart rig. Very happy with the results and accuracy
DJ bobby KDJ bobby K
See 332 more reviews

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User experience

🐞

Reported Bugs

3 issues

Crashes on launch

Bug

Inaccurate SPL and frequency measurements

Bug

Compatibility issues with iOS updates

Bug
✨

Requested Features

4 requests

Add manual

Feature

Improve file export and sharing

Feature

Improve user interface

Feature

Add support for external microphones

Feature

FAQ

What does AudioTools do?

AudioTools is a professional-grade application that provides a suite of audio and acoustic analysis tools. It includes features like an SPL meter, Real Time Analyzer (RTA), Fast Fourier Transform (FFT), speaker polarity testing, and more, designed for accurate sound measurements and analysis.

What are the key features included in the app?

The app comes with a comprehensive set of included tools such as an SPL Meter, RTA, FFT analysis, Speaker Polarity Test, Generator, Audio Scope, CLF Viewer, and Recorder. It also offers file transfer of results via Wi-Fi to PC/Mac and various audio calculators.

How much does AudioTools cost?

The base application is free to download and includes a core set of professional tools. Additional powerful modules, such as SoundScope VR, Transfer Function, and ETC, are available for purchase as in-app upgrades to expand its functionality.

What devices is AudioTools compatible with?

The application is designed for iOS devices. The developers test and calibrate the microphone level and frequency response for each iOS device to ensure the best possible results, and can measure up to 120 dB SPL on many devices.

What are some common use cases for AudioTools?

This app is ideal for professionals needing to measure sound pressure levels (SPL), analyze room acoustics with RTA and FFT, test speaker polarity, generate test signals, or record audio. It can also be used with professional audio interfaces for advanced measurements.