MintFFT

Audio spectrum analyzer

Free · Designed for iPad

Minimal and intuitive. A clean spectrum analyzer for iPhone and iPad — smooth, touch-friendly, and designed for clarity. MintFFT is a simple and precise audio spectrum analyzer for iPhone and iPad. Designed with a focus on clarity and calm, it turns your sound into smooth, real-time visuals — without ads, clutter, or unnecessary controls. Features • Real-time FFT spectrum with dB scale • Peak hold and multiple window functions (Hann, Hamming, Blackman, Rectangle) • Pinch to zoom and swipe to pan across frequency ranges • Supports internal and external microphones (USB-C / Lightning) • Works in portrait, landscape, and Split View on iPad • Runs entirely on-device — no recording, tracking, or data collection Privacy First MintFFT processes all audio locally for visualization only. No data ever leaves your device. Simple. Clear. Reliable. Just open MintFFT and watch your sound.

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Version 1.1 introduces new localizations for Danish, Hindi, Indonesian, Italian, Polish, Portuguese, Spanish, Thai, Traditional Chinese, Turkish, and Vietnamese.

Version 1.1

The developer, Takahiro Kamatani, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    • Seller
      • Takahiro Kamatani
    • Size
      • 1.3 MB
    • Category
      • Music
    • Compatibility
      Requires iOS 18.4 or later.
      • iPhone
        Requires iOS 18.4 or later.
      • iPad
        Requires iPadOS 18.4 or later.
      • Mac
        Requires macOS 15.4 or later and a Mac with Apple M1 chip or later.
    • Languages
      English and 21 more
      • English, Arabic, Danish, Dutch, Finnish, French, German, Hindi, Indonesian, Italian, Japanese, Korean, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Swedish, Thai, Traditional Chinese, Turkish, Vietnamese
    • Age Rating
      4+
    • Copyright
      • © Takahiro Kamatani
  • Privacy Policy