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AudioTools, dB, Sound & Audio

AudioTools, dB, Sound & Audio

RTA, Acoustics Measurement SPL

5.1K ratings
363 reviews
#96 in paid Music
🔧 Utilities
🎵 Music
$19.99
In-App Purchases

Details

Released
September 8, 2009
Updated
October 27, 2026

Features

Developer

Andrew Smith
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iphone
iphoneDuo
ipad
🧾$2.99 - $49.99
In-App Purchase↘︎
📉no. 96
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📌Ready
Reviews summary↘︎
⭐363
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🔄6+ apps
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❓5 answered
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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 about AudioTools, dB, Sound & Audio

Reviews of AudioTools, dB, Sound & Audio are mixed: the Music app is rated 4.8/5 from 5.1K App Store ratings. What users like most: useful audio tools, regularly updated. Top complaints: many features locked behind paywall, buggy iOS port. Summarized from real user reviews.

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

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

18.15

October 27, 2026

AudioTools, #1 audio test and measurement app New in this release: - Ready for iPhone Duo: every screen adapts to closed, open, book and tent, with controls in the side strip. - Transfer Function: delay finder locks on and repeats to 0.01 ms; phase, coherence and averaging reworked (H1 estimator, coherence as Smaart shows it); reference follows a streamed SurroundPod generator. - LARSA: a short or quiet trigger re-arms instead of ending the capture; no crash on a calculation with no sweep captured. - uPrecisionMic (legacy USB): low and high ranges measure correctly in 24-bit; no stray "Calibration Modified" popup. - HAA Link: speaker distance follows the Hyperion 1.2 firmware convention; QSC Q-SYS Core supported as a processor; Auto calibration runs on any processor. - Utilities: the Files row, which did nothing, is gone. - Ready for iPhone Duo; built for the latest iOS. - Bug fixes and stability improvements.

More
21

Subscriptions & In-App Purchases

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 ⁉️

Charts

Top Paid

📉 96-9

Music

This app dropped -9 positions in Music chart.

Last updated on November 5, 2026.

User reviews

Most RecentHighest RatedLowest Rated

Smaart Tools crashes upon opening on this latest update. FIXED!

It’s crashing on both iPhone and iPad. YOU FIXED IT VERY FAST WELL DONE!
6666Corey

I Use this great App Daily

As an Audio Professional, I use this App everyday in my work. I have have been at it fo 50 years. This App for about 5 years! I paid $35K for my first B&K 1/3 Octave Spectrum Analyzer which was the size of a 20” TV.
CClaudeHill2

Amazing

One of the best, and precise tool !
SSlavazvuk

Audio Calibrations

AudioTools, linked with the HAA software is a must-have for all professional Audio Calibrators & enthusiasts
HHomeCinemaAV

Splendid

I already had the Audio Toolkit and measured many Studio rooms with it. To have this awesome AudioTools always with you in your pocket is just a dream!
FFMBahia
See 358 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.