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.
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.
18.12
October 1, 2026
AudioTools, #1 audio test and measurement app New in this release: -FFT: new Parallel mux mode analyzes every included mic at once and power-averages them -Mic calibration files now apply the whole correction curve, not just the first part -FFT: mic compensation follows the frequency axis when the scale changes -The FFT play/pause button shows the actual run state -Leaving FFT, Scope, Transfer Function or Amplitude Sweep now stops the analyzer -Fixed the dead "..." toolbar button on iOS 26 and 27 -Fixed the sidebar toggle hiding the category list -Fixed ghost menu buttons and the SPL Traffic Light header -SPL Pro and SPL Meter layout fixes on every iPhone -Support for new iPhone models -Calibration for the latest iPhone models -Faster plotting: Metal only -Built for the latest iOS -Bug fixes and stability improvements
MoreUnlock all modules (except third-party apps)
3 issues
Crashes on launch
Inaccurate SPL and frequency measurements
4 requests
Add manual
Improve file export and sharing
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.
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.
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.
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.
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.
