TestTone app icon

Apps Like TestTone for iPhone and iPad

Audio test signal generator for music.

The app generates sine, triangle, sawtooth, and square waves from 20 Hz to 20 kHz. It also produces white noise and pink noise, with manual frequency input and waveform selection.

by 博 武田★ 0.00 ratingsMusic$1.99Data updated 2026-09-15
App detailsView in App Store

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Ranked alternatives

Showing 401–420 of 1,000 ranked alternatives.

  2. MorseKey app icon

    MorseKey

    Ronald Nicholson

    Send Morse Code with touch gestures

    Learn and practice Morse Code by touching the screen to generate tones. Adjust tone frequency from 300 Hz to 1200 Hz and control volume. Send dots with short touches and dashes with longer holds.

    ★ 4.528 ratingsEducationFreeData updated 2026-09-08
    App details
  3. Audio Analyzer app icon

    Audio Analyzer

    DEXUS Pawel Krzywdzinski

    Analyze signals in real time

    Analyze signals with real-time spectrogram, spectrum, and oscilloscope visualizations. Identify frequencies and measure response of equipment. Detect phonetic elements in speech and visualize animal calls. Check singer’s formant for vocal analysis.

    ★ 4.440 ratingsMusic$9.99Data updated 2026-09-08
    App details
  7. 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
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  10. ThereMin Plus app icon

    ThereMin Plus

    Lennart de Meij

    Play music with device motion and waveform

    Create music by rotating and positioning your device like a . Snap frequency to notes for precise tuning. Choose from three waveforms. Practice or perform with real-time sound output.

    ★ 1.03 ratingsMusicFreeData updated 2026-09-09
    App details
  12. Fosfat app icon

    Fosfat

    Klevgrand Produkter AB

    ★ 5.04 ratingsMusic$14.99Data updated 2026-09-06
    App details
  13. WaveWindow app icon

    WaveWindow

    Hidetomo Katsura

    Place grid and tick marks on display

    Displays waveforms with a grid and tick marks on the horizontal axis. Users can set time divisions per horizontal unit. The vertical axis has a solid and dashed line for reference. Users can adjust display settings and analyze waveform data.

    ★ 0.00 ratingsUtilities$4.99Data updated 2026-09-08
    App details
  14. SmartBT iPlug app icon

    SmartBT iPlug

    Shenzhen Anghui Electronic Science & Technology Co., Ltd.

    ★ 1.710 ratingsUtilitiesFreeData updated 2026-09-06
    App details
  15. Woodulator app icon

    Woodulator

    Woodman's Immaculate Maple Syrup Studio

    ★ 5.08 ratingsMusic$10.99Data updated 2026-09-16
    App details
  17. SoundMeter+ app icon

    SoundMeter+

    AURALWARE LLC

    Measure sound levels and monitor noise alerts

    Measure sound levels with a precision noise meter, including OSHA/NIOSH compliant dosimetry and impulsive noise detection. Display live spectrum and capture measurement snapshots. Email results and access hearing protection guidance.

    ★ 4.114 ratingsUtilities$1.99Data updated 2026-09-08
    App details

How we rank alternatives

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