Best Audio Spectrum Analyzer Apps

220+ iOS apps curated and reviewed

4.5 avg rating
16 free apps
Updated June 2026

With an average user rating of 4.5★, the audio spectrum analyzer category is one of the App Store's strongest. Browse all 220+ apps we track, sorted so the most loved ones surface first.

Top Picks for Audio Spectrum Analyzer

Audio / Spectrum Analyzer#1

Audio / Spectrum Analyzer by Loop-Sessions.LLC.

RTA (FFT / Octave Analysis)
Editor's Choice
🎵 Music
4.5😐(129 ratings)
$10.99AdsIn-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 app is a versatile Audio/Spectrum Analyzer that allows users to view and analyze audio waveforms and amplitude spectrums from microphone input. It offers customization options for display settings, FFT size, window functions, waveform generation, and noise signal generation. Additionally, it supports Bluetooth connection policies and offers an option to hide advertisements through an in-app purchase. For a more advanced multi-channel audio signal experience, users can try out the "Multi Wave Oscillator" linked within the app's settings.

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
Decibel X:dB Sound Level Meter#2

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

Frequency Spectrum Analyzer
Strong Contender
🔧 Utilities
4.7😐(156K ratings)
FreeIn-App Purchases
Decibel X:dB Sound Level Meter screenshot 1
Decibel X:dB Sound Level Meter screenshot 2
Decibel X:dB Sound Level Meter screenshot 3
Decibel X:dB Sound Level Meter screenshot 4
Decibel X:dB Sound Level Meter screenshot 5
Decibel X:dB Sound Level Meter screenshot 6

Transform your iOS device into a professional sound level meter with pre-calibrated accuracy and various frequency spectrum analysis tools. Measure sound pressure levels, export data to Health app, and enjoy features like FFT graphs, dosimeter readings, and InstaDecibel for social sharing. Experience the convenience of tracking noise levels with precision and ease.

What We Love

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

Room to Improve

  • 💰 Expensive subscription model
  • 🔒 Misleading free trial
  • 📢 Intrusive ads
Audio Spectrum Analyzer dB RTA#3

Audio Spectrum Analyzer dB RTA by Marina Polyanskaya

Sound frequency, decibel meter
Worth Considering
🎵 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

An advanced audio analysis app with features like real-time spectrum analysis, sound meter, and FFT plot for tuning home cinema, car stereo, and more. Experience precise frequency breakdowns and harmonic analysis with smooth HD graphics. Contact support for questions or feedback.

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

More Audio Spectrum Analyzer apps to explore

4
Audio Spectrum Analyzer Pro
Audio Spectrum Analyzer Pro
Audio Spectrum Analyzer Pro
Sound Frequency Analysis
Free

This app is a powerful real-time audio analysis tool with features like FFT plot, octave band real-time analyzer, and various measurement functions. It offers precise measurements using device-integrated microphones, AirPods support, and external microphone compatibility. Explore more features and functionalities by checking out the app!

🎵 Music
(236)
5
Smaart RTA
Smaart RTA
Smaart RTA
RTA, Spectrograph, SPL Meter
Free
🎵 Music
(195)
6
MintFFT
MintFFT
MintFFT
Audio spectrum analyzer
Free
🎵 Music
(0)
7
Decibel : dB sound level meter
Decibel : dB sound level meter
Decibel : dB sound level meter
Audio noise Spectrum Analyzer
Free

An advanced sound level meter app with a built-in Spectrum Analyzer for precise measurements. Monitor noise levels, save measurements, export data, and protect your hearing using various features. Download now for accurate sound monitoring and protection.

🔧 Utilities
(36K)
8
N-Signal / FFT Sound Analyzer
N-Signal / FFT Sound Analyzer
N-Signal / FFT Sound Analyzer
Audio Spectrum Analyzer
Free
🔧 Utilities
(0)
9
Spectrum Lab - Audio Analyzer
Spectrum Lab - Audio Analyzer
Spectrum Lab - Audio Analyzer
Frequency Spectrum Analyzer
Free
🎵 Music
(0)
10
Decibel Meter X
Decibel Meter X
Decibel Meter X
Audio spectrum analyzer
Free

This sound measurement and spectrum analysis tool allows users to easily measure decibel levels, decompose sound into frequency components, and generate specific frequency sounds for various applications. With its intuitive interface and detailed instructions, it's suitable for both beginners and professionals, enabling them to explore and understand sound in-depth.

🔧 Utilities
(18)
11
TB Spectrogram
TB Spectrogram
TB Spectrogram
Spectrum visualisation plug-in
Free
🎵 Music
(45)
12
Spectrum Analyzer: Spectrogram
Spectrum Analyzer: Spectrogram
Spectrum Analyzer: Spectrogram
Audio frequency visualizer
Free

Experience real-time sound analysis with a professional Spectrum Analyzer app that includes a sound level meter, multichannel harmonic analysis, adjustable graphics, and an AI-powered sound source analyzer. Enhance your understanding of your sound environment with detailed graphical representations and precise measurements. Check it out now!

🎵 Music
(188)
13
Audio Spectrum Analyzer
Audio Spectrum Analyzer
Audio Spectrum Analyzer
by Black Cat Systems
$3.99

This application transforms your device into an audio spectrum analyzer, displaying frequencies up to 20 kHz and allowing you to control the frequency span, FFT size, and display settings. With various features such as filtering, peak hold, and customizable display options, you can analyze and visualize audio spectra with precision, and even save screenshots for reference.

🔧 Utilities
(52)
14
NIOSH Sound Level Meter
NIOSH Sound Level Meter
NIOSH Sound Level Meter
by EA LAB d.o.o.
Free

This award-winning app, developed by acoustics engineers and hearing loss experts, offers a simple and free solution for measuring sound levels accurately. It provides essential metrics, calibration options, educational resources, and expert support, making it a comprehensive tool for monitoring noise exposure and protecting hearing. Click the link to access the app: [NIOSH Sound Level Meter](https:/www.cdc.gov/niosh/topics/noise/app.html).

🔧 Utilities
(16K)
15
Sound Meter (dB) - dBShift
Sound Meter (dB) - dBShift
Sound Meter (dB) - dBShift
Quick Sound Analyzer
Free

Measure, record, and analyze sound levels in real-time with a precise mobile app designed for professionals and individuals alike, featuring real-time measurement, sound recording, and graphical analysis. Download the app to start tracking sound levels and receive customizable alerts and historical data insights.

🎵 Music
(18)
16
Decibel Meter Ultra
Decibel Meter Ultra
Decibel Meter Ultra
Noise Level Frequency Analyzer
Free

Measure the sound levels around you accurately with our Decibel Meter Ultra app. Stay informed and protect your hearing by monitoring noise levels in real-time. Download now for a quieter and safer environment.

🔧 Utilities
(272)
17
Audio spectrum analyzer EQ Rta
Audio spectrum analyzer EQ Rta
Audio spectrum analyzer EQ Rta
Sound frequency, decibel meter
$3.99

An advanced real-time audio analysis app with features like Octave Band Real-Time Analyzer, FFT Plot, and Multispectral Harmonic Analyzer. Ideal for room and speaker tuning, this app provides detailed audio measurement and visualization. Contact for more information at lspappscare@gmail.com.

📊 Productivity
(245)
18
AudioTools, dB, Sound & Audio
AudioTools, dB, Sound & Audio
AudioTools, dB, Sound & Audio
RTA, Acoustics Measurement SPL
$19.99

Get precise sound measurements on your smartphone with AudioTools. Measure dB levels, analyze sound frequencies, and optimize audio equipment for the best sound quality on the go. Download now for accurate audio analysis!

🎵 Music
(5K)
19
Mic Spectrum Analyzer
Mic Spectrum Analyzer
Mic Spectrum Analyzer
by Adrian Ross
Free

This music visualization tool lets you visualize sound from your phone's microphone in various shapes and effects, with customizable sensitivity and UI themes. Explore a range of presets, load your own photos, and experiment with different effects to create a unique experience.

🎵 Music
(18)
20
Tone Generator: Audio Sound Hz
Tone Generator: Audio Sound Hz
Tone Generator: Audio Sound Hz
Generate Audio Frequency Waves
Free

Generate pure sine wave tones at various frequencies for purposes like tuning instruments, hearing tests, and audio equipment testing. Easily adjust frequencies, volume, and output options with user-friendly controls. Created by audio experts at TMSOFT. Explore more apps at http://www.tmsoft.com/.

🎵 Music
(128)

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