Best Audio Analyzer Apps

4.6😐(1.1K ratings)

FreeAdsIn-App Purchases

Analyze audio signals in real-time with detailed waveform, amplitude spectrum, and spectrogram displays. Offers customizable settings for FFT size, window functions, and frequency weighting. Includes tools for generating basic waveforms and measurement signals.

What We Love

👍 Customizable features
⚙️ Accurate measurements
🚀 Helpful for troubleshooting
💡 Useful for ghost hunting

Room to Improve

🐛 Crashes and freezes
🔋 High battery and CPU usage
🚫 Inappropriate ads/content
🔒 Security concerns with payment info

Decibel X:dB Sound Level Meter by SkyPaw Co., Limited

Frequency Spectrum Analyzer

Strong Contender

4.6😐(164K ratings)

FreeIn-App Purchases

Decibel X:dB Sound Level Meter screenshot 1

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Decibel X:dB Sound Level Meter screenshot 5

Decibel X:dB Sound Level Meter screenshot 6

This tool transforms your device into a professional sound level meter, offering precise measurements of ambient noise. It features advanced calibration, frequency analysis, and data management for various applications, from personal curiosity to professional use.

What We Love

⭐ Excellent app
👍 Easy to use and understand
🔍 Useful for various applications
🎓 Helpful for hearing protection
🔧 Accurate and reliable

Room to Improve

💰 Expensive subscription model
🔒 Misleading free trial
📢 Intrusive ads
🤖 Inaccurate readings compared to professional meters
🤔 Confusing interface

Audio Spectrum Analyzer Pro by Vlad Polyanskiy

Sound Frequency Analysis

Worth Considering

Spectrum Lab - Audio Analyzer

4.4😐(239 ratings)

FreeIn-App Purchases

Audio Spectrum Analyzer Pro screenshot 1

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Analyze sound frequencies in real-time with this powerful tool. It offers detailed octave band analysis, FFT plots, and various measurement scales. Supports multiple microphones and noise analysis features for accurate audio insights.

What We Love

👍 Intuitive and easy-to-use interface
💰 Completely free with no ads
🎯 Accurate frequency and spectrum analysis
📊 Multiple visualization modes (FFT, spectrograph, bar display)
🔧 Professional-grade audio measurement tool
🎵 Identifies musical notes and frequencies
⚡ Responsive and real-time analysis
🛠️ Useful for sound engineering and audio setup
📱 Works well on both iPhone and iPad

Room to Improve

💸 Aggressive subscription/paywall nags
🔄 Frequent iOS compatibility issues after updates
📉 Features moved behind paywall in recent updates
🐛 App crashes on startup (especially iOS 16/26)
⚠️ Misleading free trial that requires payment
🔐 Excessive permissions requests (photo access)
🎚️ Limited microphone sensitivity controls
📊 Graph obscured by notch/dynamic island
🔊 Mutes device speaker volume when running
⏱️ Slow performance on some devices

More Audio Analyzer apps to explore

Frequency Spectrum Analyzer

Real-time frequency analysisMultiple input source supportPeak detection for signal changes

This real-time audio spectrum analyzer provides a fast, responsive display to monitor live frequencies from various input sources. It helps analyze music, inspect mixes, and understand sound environments. Designed for simplicity, it requires no manual configuration for immediate use.

Realtime Spectrum Analyzer

$3.99

Visualize audio in real-time with waveform and spectrum analysis. Explore historical peaks and FFT data with intuitive touch controls for zooming and volume adjustment.

Waveform visualizer (oscilloscope)Spectrum analyzerHistorical peak display

SoundEngg: RTA Audio Analyzer

Live Sound Spectrum & PA Tools

Real-time RTA spectrum analyzerTransfer function consoleSpeaker delay and acoustic pulse alignment calculator

This app provides live sound engineers with a suite of tools for acoustic analysis and PA system calculation. It functions as a real-time spectrum analyzer, delay calculator, and subwoofer array designer, replacing multiple hardware devices with a mobile workstation.

free with in-app purchases

(1)

Audio Analyzer

by DEXUS Pawel Krzywdzinski

$9.99

This app provides real-time visual analysis of acoustic signals. It offers detailed insights into sound through spectrum, spectrogram, oscilloscope, and RTA displays, useful for musicians, engineers, and researchers.

Real-time spectrum analyzerSpectrogram analysis (color/B&W)Oscilloscope with full FFT window

Measure, with a known floor

FFT Spectrum Audio Analyzer

Real-Time FFT and dB Meter

$6.99

SignalMetric: Audio Analyzer

LUFS Meter & Noise Monitor

$1.99

NIOSH Sound Level Meter

by EA LAB

Accurate sound level measurement (± 2 dBA)Professional metrics (LAeq, TWA, Max, Peak)Noise dose and projected dose calculations

This award-winning utility app accurately measures sound levels and noise exposure using your smartphone. Developed by acoustics experts, it provides professional-grade metrics and educational resources on hearing protection, all for free.

Pro audio measurement suite

Audio Spectrum Pro: Analyzer

Spectrum, tuner, RT60 & more

Explore a new world of audio

Spectrum analysisAudio oscilloscopeSpectrogram visualization

This professional audio analysis software offers a comprehensive suite of measurement tools. It supports spectrum analysis, phase spectrum, audio oscilloscope, and spectrograms, along with recording, playback, and peak measurement functionalities.

free with in-app purchases

(1)

Spectrum-V: Audio analyzer

Spectrum, Spectrogram & Tuner

$5.99

Sound Meter, dB & RTA Analyzer

Spectrum: Audio Analyzer

Spectrum Analyzer - Audio FFT

Real-time spectrum analyzer

Real-Time Spectrum Analyzer

BMA Spectrum Analyzer

Real-time spectrum displayMultiple band configurationsLive meter with AVG, PEAK, CREST, MAX

Transform your device into a professional audio spectrum analyzer. Visualize sound frequencies in real-time with detailed visual feedback and advanced measurement tools. Ideal for audio professionals and enthusiasts.