Best Spectrum Analyzer Audio Apps

209+ iOS apps curated and reviewed

3.9 avg rating
11 free apps
Updated July 2026

Audio / Spectrum Analyzer is the household name in spectrum analyzer audio, but it's far from the only option. We track 209+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Top Picks for Spectrum Analyzer Audio

Audio / Spectrum Analyzer#1

Audio / Spectrum Analyzer by Loop-Sessions.LLC.

RTA (FFT / Octave Analysis)
Editor's Choice
🎵 Music
4.5😐(129 ratings)
FreeAdsIn-App Purchases
Audio / Spectrum Analyzer screenshot 1
Audio / Spectrum Analyzer screenshot 2
Audio / Spectrum Analyzer screenshot 3
Audio / Spectrum Analyzer screenshot 4
Audio / Spectrum Analyzer screenshot 5
Audio / Spectrum Analyzer screenshot 6

This application analyzes audio input from your microphone, displaying both the waveform and amplitude spectrum in real-time. It offers extensive customization for display, calculation, and signal generation.

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
Audio Spectrum Analyzer dB RTA#2

Audio Spectrum Analyzer dB RTA by Marina Polyanskaya

Sound frequency, decibel meter
Strong Contender
🎵 Music
4.5😐(3K ratings)
FreeIn-App Purchases
Audio Spectrum Analyzer dB RTA screenshot 1
Audio Spectrum Analyzer dB RTA screenshot 2
Audio Spectrum Analyzer dB RTA screenshot 3

Analyze sound frequencies and decibel levels with this advanced tool. Ideal for tuning audio systems, it offers real-time spectrum analysis and sound metering for various applications.

What We Love

  • 🚀 Excellent audio analysis tool
  • 👍 Clean and intuitive interface
  • 💡 Customizable frequency range
  • 🔍 Accurate real-time spectrum visualization

Room to Improve

  • 🐛 Compatibility issues with newer iOS versions
  • 🔁 Constant prompts to upgrade to Pro version
  • 🔌 High battery consumption
Audio Spectrum Analyzer Pro#3

Audio Spectrum Analyzer Pro by Vlad Polyanskiy

Sound Frequency Analysis
Worth Considering
🎵 Music
4.4😐(236 ratings)
FreeAdsIn-App Purchases
Audio Spectrum Analyzer Pro screenshot 1
Audio Spectrum Analyzer Pro screenshot 2
Audio Spectrum Analyzer Pro screenshot 3
Audio Spectrum Analyzer Pro screenshot 4
Audio Spectrum Analyzer Pro screenshot 5

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)

Room to Improve

  • 💸 Aggressive subscription/paywall nags
  • 🔄 Frequent iOS compatibility issues after updates
  • 📉 Features moved behind paywall in recent updates

More Spectrum Analyzer Audio apps to explore

4
Audio spectrum analyzer EQ Rta
Audio spectrum analyzer EQ Rta
Audio spectrum analyzer EQ Rta
Sound frequency, decibel meter
$3.99

This app provides real-time audio analysis and visualization for sound frequency and decibel levels. It's designed for precise audio measurement, suitable for both hobbyists and professionals tuning rooms or speakers.

Octave Band Real-Time AnalyzerFFT PlotSmooth HD Graphics
📊 Productivity
(245)
free
5
Spectrum Lab - Audio Analyzer
Spectrum Lab - Audio Analyzer
Spectrum Lab - Audio Analyzer
Frequency Spectrum Analyzer
Free
🎵 Music
(0)
6
Spectrum Analyzer RTA
Spectrum Analyzer RTA
Spectrum Analyzer RTA
Sound Frequency Analyzer
$19.99

This real-time audio analysis app provides precision measurement and visualization for sound frequencies. It's designed for musicians and recording engineers, offering tools for room and speaker tuning, and can be used with built-in or external microphones.

Octave Band Real Time AnalyzerFFT PlotSpectrograph module
🎵 Music
(67)
paid
7
Audio Spectrum Analyzer
Audio Spectrum Analyzer
Audio Spectrum Analyzer
by Black Cat Systems
$3.99

Transform your iOS device into a powerful audio spectrum analyzer. Visualize frequencies up to 20 kHz with customizable display options including frequency span, FFT size, and logarithmic views. Enhance analysis with filtering, peak hold, and adjustable decay rates.

Frequency analysis up to 20 kHzAdjustable frequency span and FFT sizeLogarithmic frequency display
🔧 Utilities
(52)
paid
8
dB Meter & Spectrum Analyzer
dB Meter & Spectrum Analyzer
dB Meter & Spectrum Analyzer
Noise & sound level decibel
$29.99

Measure ambient noise levels with professional-quality accuracy. This app offers a spectrum analyzer, hearing test, and the ability to save and share measurements with location data. It's a powerful, cost-effective tool for personal sound monitoring.

Professional-quality sound level measurementIntegrated spectrum analyzerNoise dosimeter (NIOSH/OSHA)
🔧 Utilities
(858)
free with in-app purchases
9
Spectrum-V: Audio analyzer
Spectrum-V: Audio analyzer
Spectrum-V: Audio analyzer
Spectrum, Spectrogram & Tuner
$5.99
🔧 Utilities
(0)
10
Spectrum Analyzer: Spectrogram
Spectrum Analyzer: Spectrogram
Spectrum Analyzer: Spectrogram
Audio frequency visualizer
Free

Visualize audio frequencies with real-time analysis. Features include a sound level meter, multichannel harmonic analysis, and adjustable graphical representations. Gain insights into your sound environment with advanced tools.

Sound level meterMultichannel harmonic analysisAdjustable graphics
🎵 Music
(192)
freemium
11
Frequency Analyzer
Frequency Analyzer
Frequency Analyzer
Audio Spectrum, Spectroid, dB
Free

Transform your device into a professional audio analysis tool with advanced FFT analysis, SPL monitoring, and detailed visualizations. Record, analyze, and export audio data with precision calibration and multiple weighting filters.

Real-time FFT analysisCalibrated SPL measurements32-bit float audio recording
🔧 Utilities
(97)
free with in-app purchases
12
Mic Spectrum Analyzer
Mic Spectrum Analyzer
Mic Spectrum Analyzer
by Adrian Ross
Free

Visualize sound from your phone's microphone with various shapes and effects. Customize sensitivity, choose between dark and light themes, and explore 18 presets, custom shaders, and over 16 different effects for advanced users.

18 predefined presetsLoad custom photosAdjustable sensitivity
🎵 Music
(18)
free
13
FrequenSee - Spectrum Analyzer
FrequenSee - Spectrum Analyzer
FrequenSee - Spectrum Analyzer
Visualizing Sound in Motion
$2.99

Visualize sound in motion with a highly responsive audio spectrum analyzer. It offers precise real-time analysis of music, voice, and environmental sounds, making it easier to track frequency and amplitude movements. Ideal for professionals and music enthusiasts looking to explore sound in a new way.

Highly responsive audio spectrum analysis24,000 measurements per secondPrecise low-frequency tracking
🎵 Music
(10)
paid
14
Muzz - Audio Spectrum Analyzer
Muzz - Audio Spectrum Analyzer
Muzz - Audio Spectrum Analyzer
Audio spectrum analyzer app
$9.99

Analyze audio signals with 21 different spectrum analyzers. Visualize fundamental frequencies, harmonics, and feedback for both beginners and experts. Supports loading audio files or using live microphone input.

21 spectrum analyzer typesLoad audio filesLive audio mode
🔧 Utilities
(2)
paid
15
BMA Spectrum Analyzer
BMA Spectrum Analyzer
BMA Spectrum Analyzer
Real time spectrum analyzer
Free
🎵 Music
(0)
16
Sound Spectrum Analysis
Sound Spectrum Analysis
Sound Spectrum Analysis
Audio Frequency Analyzer (RTA)
Free

Analyze sound spectrums in real-time using your device's microphone. This tool offers detailed frequency and amplitude scales, various window functions, and octave band analysis. It can also function as a noise level meter and allows for data export and saving of measurements.

Real-time sound spectrum analysisFast Fourier Transform (FFT) with adjustable sizeLinear and logarithmic frequency/amplitude scales
🔧 Utilities
(41)
free with in-app purchases
17
Spectre Analyzer for Logic Pro
Spectre Analyzer for Logic Pro
Spectre Analyzer for Logic Pro
Auv3 Plugin for iOS and macOS
Free

Visualize your audio in real-time with high-resolution FFT analysis. This Audio Unit plugin is compatible with various host apps and utilizes the GPU for efficient, CPU-light processing.

Real-time audio visualizationHigh-resolution FFT analysisGPU-accelerated rendering
🎵 Music
(3)
free
18
Decibel : dB sound level meter
Decibel : dB sound level meter
Decibel : dB sound level meter
Audio noise Spectrum Analyzer
Free

Transform your device into a professional sound level meter and audio analyzer. Measure ambient noise, monitor decibel levels, and visualize sound frequencies in real time. It also offers advanced sleep tracking with sound recognition to identify disruptions.

Real-time decibel (dB) sound level monitoringIntegrated Spectrum Analyzer (FFT, spectrogram)Sleep tracking with sound recognition
🔧 Utilities
(36K)
freemium
19
Decibel X PRO: dBA Noise Meter
Decibel X PRO: dBA Noise Meter
Decibel X PRO: dBA Noise Meter
Frequency Spectrum Analyzer
$69.99

This application transforms your device into a professional sound level meter, offering precise dBA and dBC measurements. It features advanced analysis tools like frequency spectrum analysis and data export, making it ideal for audio professionals and anyone interested in sound environments.

Professional sound level meterdBA and dBC measurementsFrequency spectrum analysis (FFT, BAR graphs)
🔧 Utilities
(6.9K)
paid
20
FFT Spectrum Audio Analyzer
FFT Spectrum Audio Analyzer
FFT Spectrum Audio Analyzer
Real-Time FFT and dB Meter
$6.99
🎵 Music
(0)