Best Audio Frequency Analyzer Apps

225+ iOS apps curated and reviewed

4.5 avg rating
17 free apps
Updated May 2026

From beginner-friendly picks to power-user tools, our audio frequency analyzer list covers 225+ iPhone apps updated through May 2026. Compare ratings, prices, and screenshots in one place.

Top Picks for Audio Frequency Analyzer

Audio / Spectrum Analyzer#1

Audio / Spectrum Analyzer by Loop-Sessions.LLC.

RTA (FFT / Octave Analysis)
Editor's Choice
🎵 Music
4.9😐(72 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
Frequency Analyzer#2

Frequency Analyzer by Manfred Kuegel

Audio Spectrum, Spectroid, dB
Strong Contender
🔧 Utilities
4.5(97 ratings)
FreeIn-App Purchases
Frequency Analyzer screenshot 1
Frequency Analyzer screenshot 2
Frequency Analyzer screenshot 3
Frequency Analyzer screenshot 4
Frequency Analyzer screenshot 5
Frequency Analyzer screenshot 6

Transform your device into a professional-grade audio analysis suite with industry-leading processing, precision calibration tools, and comprehensive visualization capabilities. Download now and unlock the full spectrum of acoustic measurement capabilities for applications such as acoustic measurement, audio engineering, environmental noise consulting, and more.

Decibel X:dB Sound Level Meter#3

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

Frequency Spectrum Analyzer
Worth Considering
🔧 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

More Audio Frequency Analyzer apps to explore

4
Audio Spectrum Analyzer dB RTA
Audio Spectrum Analyzer dB RTA
Audio Spectrum Analyzer dB RTA
Sound frequency, decibel meter
Free

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.

🎵 Music
(3K)
5
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)
6
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)
7
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)
8
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)
9
Audio Frequency Analyzer
Audio Frequency Analyzer
Audio Frequency Analyzer
by TOON,LLC
$9.99

This powerful real-time audio analyzer app measures and evaluates sound environments with precision, offering features such as frequency response analysis and calibration, making it suitable for various applications including sound tuning, equipment testing, and noise investigation. Download the app to start analyzing your sound environment with ease.

🔧 Utilities
(3)
10
Sound Spectrum Analysis
Sound Spectrum Analysis
Sound Spectrum Analysis
Audio Frequency Analyzer (RTA)
Free

This application analyzes sound spectra in real-time using a microphone, offering features such as FFT, linear and logarithmic scales, and various window functions. It can be used to measure noise levels, detect peak frequencies, and export data, making it a useful tool for sound analysis and measurement.

🔧 Utilities
(41)
11
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)
12
Decibel - sound level meter
Decibel - sound level meter
Decibel - sound level meter
Spectrum frequency analyzer
Free

Measure sound pressure and spectrum variations with the Decibel app. Compare recordings to a reference chart, save your history, and enjoy a user-friendly interface. Subscribe for access to premium features and unlimited recordings.

🔧 Utilities
(4.5K)
13
HouseCurve
HouseCurve
HouseCurve
Simple audio system tuning
Free

HouseCurve is a versatile tool for tuning audio systems, offering features like room correction, equalizer adjustments, subwoofer phase setting, and more. Easily measure, compare, and adjust your audio setup for optimal sound quality. Visit housecurve.com for details and additional features.

🔧 Utilities
(241)
14
VisiWave
VisiWave
VisiWave
See the frequencies around you
Free

This app lets you detect and visualize the frequencies of surrounding sounds in real-time, allowing you to see sound waves moving around you. Download the app to experience the magic of sound visualization and discover the frequencies that fill your environment.

🔧 Utilities
(8)
15
Audio Function Generator
Audio Function Generator
Audio Function Generator
Frequency and Signal Generator
Free

Discover an exceptional Function Generator App with a wide array of features for generating test tones, frequency sweeps, volume sweeps, and more. From playing music tones to custom presets and advanced settings available in the PRO version, this app offers an intuitive and powerful audio experience. Visit the tutorial page at www.ee-toolkit.com/audio-function-generator and explore its capabilities today!

🔧 Utilities
(2.1K)
16
Decibel Meter Sound Detector
Decibel Meter Sound Detector
Decibel Meter Sound Detector
Track noise around you.
Free

Track environmental noise levels with an easy-to-use decibel meter app that provides detailed analysis through dB and AF readings. Share readings, utilize polling, and explore various features for sound monitoring. Contact info@ashiers.com for more information.

📊 Productivity
(48K)
17
Frequency: Healing Sounds
Frequency: Healing Sounds
Frequency: Healing Sounds
Heal Naturally, Inner Harmony
Free

Experience a transformative audio journey with Frequency: Healing Sounds. Immerse yourself in Hz sound frequencies designed to enhance relaxation, focus, and well-being. Rediscover harmony and balance with our curated collection of healing sounds. Try it now for a peaceful state of mind.

💪 Health & Fitness
(13)
18
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)
19
n-Track Tuner
n-Track Tuner
n-Track Tuner
Tune guitar,bass & instruments
Free

Tune your guitar, bass, and more with precision using an advanced tuning application. Perfect your musical instruments effortlessly.

🎵 Music
(3.1K)
20
Decibel Meter Noise DB Reader
Decibel Meter Noise DB Reader
Decibel Meter Noise DB Reader
Frequency Generator & Analyzer
Free

Transform your iPhone into a professional-grade sound lab with this app, offering real-time noise measurement, acoustic analysis, and frequency generation. Measure environmental noise, analyze sound frequencies, generate sound waves, and save reports for professionals or personal use.

🎵 Music
(13)

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