AudioTool

8.8

jjbunn

4.52

1,623 reviews

50,000+
Downloads

$7.99

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

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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 610 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 64 thousand times. In the last 30 days, the app was downloaded 610 times. It is ranked in the top 100 music & audio apps.

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 since 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	64 thousand
Recent downloads	610
Rating	4.52 based on 1.6 thousand ratings
Ranking	Highly 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

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 64 thousand times. Over the past 30 days, it averaged 20 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

Top rankings

Rank	Country	Category	List
23	Belgium	Music & Audio	Top Paid
23	Indonesia	Music & Audio	Top Paid
23	Norway	Music & Audio	Top Paid
23	Slovakia	Music & Audio	Top Paid
24	Austria	Music & Audio	Top Paid
24	Switzerland	Music & Audio	Top Paid
24	Czech Republic	Music & Audio	Top Paid
24	Finland	Music & Audio	Top Paid
24	India	Music & Audio	Top Paid
24	Mexico	Music & Audio	Top Paid

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Ranking history in Belgium

Ranking history

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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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