AudioTool

8.8

jjbunn

4.52

1,619 reviews

50,000+
Downloads

$7.99

AudioTool: Fully Featured SPL, dB and Sone Meter, plus Audio Spectrum Analyzer

Download from Google Play

AudioTool delivers a professional-grade SPL, dB, and Sone meter paired with a comprehensive audio spectrum analyzer. With real-time measurements, octave-based RTA modes, and calibration features, it’s designed for audio engineers and acoustics work on Android devices. Total downloads exceed 50,000+, with 680 new in the last 30 days.

Pros & Cons

Comprehensive, professional-grade measurement suite including SPL, Leq, Sone, RT60, and spectrogram
Advanced real-time analysis with multiple octave RTAs and calibration options
Built-in signal generator with diverse waveforms for testing and calibration
Store and load spectra and calibration files for repeatable measurements

Performance depends on Android hardware and is not guaranteed to meet external audio measurement standards
Requires several permissions for recording and storage

About AudioTool

AudioTool is a music & audio app developed by jjbunn.

Download Statistics

AudioTool has been downloaded 63 thousand times. In the last 30 days, the app was downloaded 680 times.

User Ratings

AudioTool is rated 4.52 out of 5 stars. The rating is based on 1.6 thousand ratings.

App Information

AudioTool costs $7.99 to download. The APK download size is 3.43 MB. The latest version available is 8.8. The last update was on August 6, 2026.

Technical Requirements

AudioTool requires Android 5.0+ or higher. The app has a content rating of Everyone. The app has been available on Google Play October 2010.

Description

SPL (deciBel) Meter featuring RT60, Leq, Sone, Spectrum Analyzer, Spectrogram, Chart Recorder, Signal Generator, Polarity Checker, and Mic calibration.

More data about AudioTool

Price	$7.99
Total downloads	63 thousand
Recent downloads	680
Rating	4.52 based on 1.6 thousand ratings
Ranking	Not ranked
Version	8.8
APK size	3.43 MB
Number of libraries	29
Designed for Android	5.0+
Suitable for	Everyone
Ads	NO ads

App Performance Report

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Alternative downloads for the AudioTool app

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Common keywords of similar apps

Audiotool Polarity Pink Sine Files Phase Screen Chart Recorder Checker Store Nc White Loudspeaker Select Load Menu Set Shows Speaker Group Sone Leq Spectrogram Check Wideband Impulse Flat Criteria Square Triangle Sweep Log Spl Generator Octave Noise Audio Spectrum Signal Rta Calibration Frequency Meter Display Response Measurements Analyzer Features Peak

Keywords missing from this app

Sound Level Db Time Decibel App Real Measure Usb Levels Measurement Device Measuring Devices Microphone Test Weighting Pressure Tool Hearing Analyze Fft Pro Mode Analysis Values Data Dba Recent Frequencies Monitor Mictester Amplitude

Google Play Rating history and histogram

Rating history

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1.2K

160

110

Downloads over time

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AudioTool has been downloaded 63 thousand times. Over the past 30 days, it averaged 23 downloads per day.

Changelog of AudioTool

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Developer information for jjbunn

jjbunn

jjbunn@gmail.com

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Comments on AudioTool for Android

★★★★★ Kevin Wilks · Feb 25, 2024

This tool is a lifesaver. Works perfectly on the SONY XPERIA Z. ****update 2024*** holy macaroon, been using this tool for over a decade now, and I cannot express in limited words how invaluable it has been to my progression, efficiency and effectiveness throughout the years. I'm on the S24 Ultra now, and it performs flawlessly for PA diagnostics (generator), RTA and general level monitoring.

★★★★★ Tim Rolufs Sr. · Mar 18, 2024

Excellent app, even better with the Dayton audio imm-6 external microphone. Well worth the price. I used it at a local outdoor concert to measure the frequency ranges of the instruments being played and the spl of the concert was 105 near the speakers and a constant 100 at my seat. I look forward to using it in my basement, car and my son's truck.

★☆☆☆☆ M W · Jun 27, 2023

I have a Dayton Mic. A Motorola Stylus phone. I have no Audio Tool folder on my phone. I can only move my Calibration File to internal storage on my phone, I have no way of getting the Audio Tool Folder into my internal storage. I've saved files on the Audio Tool app but this does not help me find a way to move my calibration into Audio Tool. After Using 1/3 Octave Calibration I am unable to Load Cal. If I can't load my Cal File I'd like my money back please.

★☆☆☆☆ Geocentric · Apr 1, 2025

It's not accurate at all from 30 HZ to 70 HZ or so. Reads extremely low from 30 to 60hz range compared to spectroid with same mic and position. My 30hz isn't almost 30 decibels less than peak bass. For speakers and earphones it is saying it has basically zero low end. High resolution set on "flat" and it's way off until around 70hz. Not my mic or me at all. Spectroid is more accurate and it's free. What is going on with high-end reading? Can't tune bass with this at all. Used calibration file too

Google Play Rankings for AudioTool

This app is not ranked

Technologies used by AudioTool

5 permissions · 29 libraries

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Trust & Safety: Permissions requested: MODIFY_AUDIO_SETTINGS, READ_EXTERNAL_STORAGE, RECORD_AUDIO, WRITE_EXTERNAL_STORAGE, and com.julian.apps.AudioTool.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION. These are standard for audio measurement apps, enabling on-device processing and file storage. No explicit data collection beyond local device usage is indicated.

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