FFT Plot app icon

Apps Like FFT Plot for iPhone and iPad

Real-time audio analysis for sound.

The app provides real-time audio analysis for musicians and recording engineers. It enables portable, precision audio measurement and visualization for tasks like room or speaker tuning.

by ONYX 3★ 4.890 ratingsMusic$9.99Data updated 2026-10-22

FFT Plot screenshots

Ranked alternatives

Showing 1–20 of 1,000 ranked alternatives.

  1. Octave RTA app icon

    Octave RTA

    ONYX 3

    Analyze audio in real time

    Analyze audio in real time with and FFT measurements. Visualize frequency response and adjust settings for room or speaker tuning. Export measurement data for further analysis.

    ★ 4.4154 ratingsMusic$9.99Data updated 2026-10-26
  2. Spectrum Analyzer RTA app icon

    Spectrum Analyzer RTA

    ONYX 3

    Real-time audio analysis for sound.

    The app provides real-time audio analysis for musicians and recording engineers. It offers octave band analysis, FFT plots, and a spectrograph for sound visualization and measurement.

    ★ 4.367 ratingsMusic$19.99Data updated 2026-09-25
  3. Audio Spectrum Analyzer dB RTA app icon

    Audio Spectrum Analyzer dB RTA

    Marina Polyanskaya

    Analyze and visualize frequencies

    Analyze frequencies with a real-time display. Adjust and visualize sound levels across different frequency ranges. Export analysis data and compare signals for accuracy. Calibrate equipment for optimal performance.

    ★ 4.53,039 ratingsMusicFreeData updated 2026-09-13
  1. Audio spectrum analyzer EQ Rta app icon

    Audio spectrum analyzer EQ Rta

    Marina Polyanskaya

    Analyze and visualize frequency

    Analyze in real time with octave band and FFT measurements. Visualize frequency spectra and measure sound levels. Export data and compare measurements across sessions.

    ★ 4.5245 ratingsProductivity$3.99Data updated 2026-10-27
  2. Audio / Spectrum Analyzer app icon

    Audio / Spectrum Analyzer

    Loop-Sessions.LLC.

    Analyze and display waveform

    Real-time analysis displays waveform and amplitude simultaneously. Users can switch between portrait and landscape modes. Options to configure waveform and display. Adjustable FFT size and window function for precise frequency analysis.

    ★ 4.61,048 ratingsMusicFreeData updated 2026-09-24
  3. Decibel X:dB Sound Level Meter app icon

    Decibel X:dB Sound Level Meter

    SkyPaw Co., Limited

    Measure sound pressure levels precisely and easily.

    The app transforms an iOS device into a sound level meter, measuring sound pressure levels. It offers features like Apple Watch support, Health app integration, and frequency analysis tools.

    ★ 4.6161,639 ratingsUtilitiesFreeData updated 2026-09-21
  4. Sound Spectrum Analysis app icon

    Sound Spectrum Analysis

    Dmitriy Kharutskiy

    Analyze waves in real time

    Analyze spectra in real time using a microphone. Display waveforms and FFT data with adjustable frequency scales. Measure noise levels for approximate readings. Adjust FFT size for varying frequency accuracy.

    ★ 3.642 ratingsUtilitiesFreeData updated 2026-09-15
  5. Audio Spectrum Analyzer app icon

    Audio Spectrum Analyzer

    Black Cat Systems

    Audio frequencies displayed for analysis.

    The app displays audio frequencies up to 20 kHz on an iPad, iPhone, or iPod Touch. Users can adjust frequency span, FFT size, and apply filtering for smoothing.

    ★ 3.953 ratingsUtilities$3.99Data updated 2026-10-16
  6. AudioTools, dB, Sound & Audio app icon

    AudioTools, dB, Sound & Audio

    Andrew Smith

    Record , analyze , test speakers

    AudioTools offers SPL measurement, RTA analysis, FFT visualization, and speaker polarity testing. Includes a generator, scope, CLF viewer, and recorder. Allows adding optional modules for advanced acoustic analysis and customization.

    ★ 4.85,088 ratingsMusic$19.99Data updated 2026-10-28
  7. Decibel Meter Sound Detector app icon

    Decibel Meter Sound Detector

    Ashraf Thoppukadavil

    Track noise levels in real time

    Measure levels in decibels using the device’s microphone. Display real-time audio frequency and dB readings. Apply filters for specific frequency and dB ranges. Share measurements via Messages, Email, WhatsApp, Notes, and other apps.

    ★ 4.754,929 ratingsProductivityFreeData updated 2026-09-13
  8. bismark bs-spectrum app icon

    bismark bs-spectrum

    bismark LLC

    Real-time audio spectrum analyzer with FFT.

    The app analyzes audio input in real-time using FFT. It displays the frequency spectrum with options for graph scale, FFT window, decay time, and amplitude offset.

    ★ 3.02 ratingsMusic$3.99Data updated 2026-09-11
  9. TonalEnergy Tuner & Metronome app icon

    TonalEnergy Tuner & Metronome

    TonalEnergy, Inc

    Practice with real-time feedback and tuning

    Offers tuning for brass, woodwind, stringed instruments, and guitars. Includes a , piano keyboard, and sound analysis. Provides feedback on pitch and timing during practice sessions.

    ★ 4.859,717 ratingsMusic$6.99Data updated 2026-10-28
  10. Audio Spectrum Analyzer Pro app icon

    Audio Spectrum Analyzer Pro

    Vlad Polyanskiy

    Analyze and display FFT plots

    Analyze in real time with octave band and FFT plots. Display sound levels in decibels and noise ratings. Choose linear or logarithmic scales. Adjust window functions and track maximum values.

    ★ 4.4238 ratingsMusicFreeData updated 2026-09-11
  11. GuitarTuna: Tune & Play Guitar app icon

    GuitarTuna: Tune & Play Guitar

    Yousician Ltd

    Guitars and learn chords

    Guitars, ukuleles, violins, and basses with adjustable tuning settings. Access chord charts and tablatures for thousands of songs. Learn techniques through interactive tutorials and receive real-time feedback during practice sessions.

    ★ 4.8148,900 ratingsMusicFreeData updated 2026-10-28
  12. Guitar Tuner - Simply Tune app icon

    Guitar Tuner - Simply Tune

    Simply Ltd

    Instruments and play at pitch

    Guitars, basses, and ukuleles with pitch detection. Select from multiple instruments. View tuning notes and chord diagrams. Adjust strings manually or use auto-. Receive tuning instructions from expert musicians. Save and share tuning sessions.

    ★ 4.8106,459 ratingsMusicFreeData updated 2026-10-28
  13. dB Meter & Spectrum Analyzer app icon

    dB Meter & Spectrum Analyzer

    Vlad Polyanskiy

    Measure sound levels and analyze frequencies

    Measure sound levels with a precision instrument featuring a . Calibrate against professional dB meters. Log noise data and set decibel thresholds. Display real-time sound level readings and frequency analysis.

    ★ 4.7865 ratingsUtilities$29.99Data updated 2026-09-08
  14. Audio RTA app icon

    Audio RTA

    DEXUS Pawel Krzywdzinski

    Analyze frequency response

    Analyze signals with real-time octave RTA. Display frequency response using RMS values across full, 1/3, 1/6, and 1/12 bands. Measure SPL in dBFS. Support FFT with adjustable window sizes. Sample at 44.1kHz, 48kHz, or 96kHz.

    ★ 4.425 ratingsMusic$3.99Data updated 2026-09-13
  15. Audio Kit app icon

    Audio Kit

    Sinusoid Pty Ltd

    Audio analysis and signal generation tools.

    The app provides a real time Spectrum Analyser, a Scope to display waveforms, an SPL Meter, and a Signal Generator. Users can view audio spectrums, waveforms, sound pressure levels, and generate sine waves or noise.

    ★ 3.56 ratingsMusic$2.99Data updated 2026-10-01
  16. Spectrogram Pro (with super-smooth 60Hz update) app icon

    Spectrogram Pro (with super-smooth 60Hz update)

    Dominik Seibold

    Analyze sound and visualize spectra

    Perform real-time spectral analysis of sounds. View images with adjustable FFT-resolutions, frequency and amplitude scales, and color schemes. Save and share spectrograms. Access bode plot modes with averaging and maximum calculations.

    ★ 3.827 ratingsMusic$3.99Data updated 2026-09-30

How we rank alternatives

Apps are ranked by functional similarity, category fit, rating confidence, and popularity.