Best Fft Wave Apps

195+ iOS apps curated and reviewed

4.4 avg rating
17 free apps
Updated June 2026

With an average user rating of 4.4★, the fft wave category is one of the App Store's strongest. Browse all 195+ apps we track, sorted so the most loved ones surface first.

Top Picks for Fft Wave

FFTWave#1

FFTWave by Eisaku Nozu

Editor's Choice
🔧 Utilities
4.3(15 ratings)
Free
FFTWave screenshot 1

Visualize sound from your microphone as a waveform and spectrum analysis. Identify frequency characteristics, detect peaks, and analyze howling with pinch-to-zoom gestures. Ideal for sound adjustment and analysis.

Audio / Spectrum Analyzer#2

Audio / Spectrum Analyzer by Loop-Sessions.LLC.

RTA (FFT / Octave Analysis)
Strong Contender
🎵 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#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

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

More Fft Wave apps to explore

4
Loughborough Wave Lab
Loughborough Wave Lab
Loughborough Wave Lab
Unlock your EM understanding!
Free

This educational app helps students grasp electromagnetic wave concepts through interactive simulations. It features a virtual ripple tank, waveguide simulator, and Young's Double Slit experiment. Educators can create custom simulations for an enhanced learning experience.

Virtual pond and ripple tankSinusoidal pulse generationWaveguide simulation
📚 Education
(13)
free
5
SpectrumView
SpectrumView
SpectrumView
by Oxford Wave Research Ltd.
Free

This app provides real-time audio analysis with a dynamic spectrogram and spectrum analyzer. Visualize audible and inaudible frequencies, measure tones, get feedback on speech, identify sounds, and calibrate instruments. Access recordings and snapshots easily.

Real-time spectrogram and spectrum analyzerConfigurable sample rate and frequency resolutionRecord, pause, and playback audio files
📚 Education
(70)
free with in-app purchases
6
AudioTools, dB, Sound & Audio
AudioTools, dB, Sound & Audio
AudioTools, dB, Sound & Audio
RTA, Acoustics Measurement SPL
$19.99

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.

SPL Meter with A/C weightingReal Time Analyzer (RTA)Fast Fourier Transform (FFT) analysis
🎵 Music
(5K)
free with in-app purchases
7
Frequency Sound Wave Generator
Frequency Sound Wave Generator
Frequency Sound Wave Generator
Try frequency generator tools
Free

Generate and analyze a wide range of sounds and frequencies. Explore tone generation, sound tests, musical tuning, and create custom sound effects. Visualize sound waves and experiment with different waveforms.

Single and multiple frequency generationMusical notes presetsBinaural beats
🔧 Utilities
(66)
free with in-app purchases
8
Audio Spectrum Analyzer Pro
Audio Spectrum Analyzer Pro
Audio Spectrum Analyzer Pro
Sound Frequency Analysis
Free

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.

Octave Band Real Time AnalyzerFFT Plot (Fast Fourier Transform)Sound level meter (dB meter)
🎵 Music
(236)
free with in-app purchases
9
Sound Oscilloscope
Sound Oscilloscope
Sound Oscilloscope
Sound Wave and Spectrum Viewer
Free

Visualize sound waves and analyze their frequency spectrum. This utility displays the waveform of various sounds, from your voice to musical instruments, and reveals their overtone structure. Explore the sonic characteristics of your environment with this straightforward tool.

Shows sound waveformShows sound spectrumShows sound power level
🔧 Utilities
(24)
free
10
Spectrolite
Spectrolite
Spectrolite
Smooth real-time spectrograms
Free

This app visualizes sound in real-time using various spectrogram types. Explore detailed audio data with intuitive touch controls and adjustable parameters. An optional purchase unlocks advanced measurement tools.

Real-time spectrogram visualizationConstant-Q, linear, and mel frequency scalesFull human hearing frequency range
🔧 Utilities
(51)
free with in-app purchases
11
sine wave generator
sine wave generator
sine wave generator
by Yuji Yanase
Free

Generate sine waves using touch input, DTMF tones, or custom frequency and volume settings. This utility app offers multiple modes for creating audio signals.

Touch-based sine wave generationDTMF tone signal creationCustom frequency and volume input
🔧 Utilities
(34)
ad-supported
12
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
13
Frequency Counter+ Hz FFT
Frequency Counter+ Hz FFT
Frequency Counter+ Hz FFT
Audio Tone & Sound Analyzer
Free
🔧 Utilities
(3)
14
Audio Function Generator
Audio Function Generator
Audio Function Generator
Frequency and Signal Generator
Free

Generate various audio test tones, including sine, square, triangle, and sawtooth waves. Explore frequency and volume sweeps, noise generation, and custom preset creation. Advanced features like extended frequency ranges and multi-tone playback are available with an upgrade.

Generate sine, square, triangle, and sawtooth tonesFrequency and volume sweep generationNoise generation (white, pink, violet, etc.)
🔧 Utilities
(2.1K)
free with in-app purchases
15
N-Signal / FFT Sound Analyzer
N-Signal / FFT Sound Analyzer
N-Signal / FFT Sound Analyzer
Audio Spectrum Analyzer
Free

Visualize sound in real-time with this audio analysis tool. It measures sound pressure levels and analyzes digital frequency levels, offering a reliable reference for sound checks and adjustments in various environments.

Real-time FFT audio spectrum analysisdB SPL sound pressure level meterDigital frequency analyzer (dBFS)
🔧 Utilities
(0)
ad-supported
16
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
17
FFT Plot
FFT Plot
FFT Plot
Sound Frequency Analyzer RTA
$9.99

This real-time audio analysis app provides precision sound measurement and visualization. It's ideal for detecting sound issues, room tuning, and speaker calibration, offering detailed frequency analysis for musicians and audio professionals.

Real-time audio analysisFrequency detectionAveraging options
🎵 Music
(87)
free
18
Clear Wave ° Water Eject
Clear Wave ° Water Eject
Clear Wave ° Water Eject
Tone generator, decibel meter
Free

Generate pure wave tones and measure ambient noise levels. Test your speakers with customizable sound waves and monitor decibel levels in your environment. Offers real-time control over volume, frequency, and waveform.

Tone generator (50-20,000 Hz)Noise level meterSpeaker testing with sound waves
🎵 Music
(226)
freemium
19
Oscilyzer
Oscilyzer
Oscilyzer
Audio analyzer and generator
Free

Analyze and generate audio signals with this app, featuring an oscilloscope for real-time waveform visualization and a spectrum analyzer for frequency analysis. It also includes a synthesizer for creating AM/FM modulated audio.

Real-time oscilloscope with triggeringSpectrum analyzer with Metal accelerationAM/FM synthesizer with waveform generation
📊 Productivity
(8)
free
20
MintFFT
MintFFT
MintFFT
Audio spectrum analyzer
Free
🎵 Music
(0)