OneTune: Guitar Tuner

Tuner, Metronome & Chords

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

Tune clearly, keep time, learn chords, and understand the music—all offline. Tune monophonic instruments in seconds. OneTune pairs a visual cents gauge with original instrument artwork, string targets, frequency, and clear tune-up / tune-down guidance. Choose from 24 practical presets for guitar, ukulele, bass, bowed strings, mandolin, banjo, Chinese strings, and transposing wind instruments. Then keep practicing with a 30–240 BPM metronome, tap tempo, four time signatures, 24 essential guitar and ukulele chord diagrams, and six short beginner lessons. Chromatic, standard guitar, standard ukulele, and concert-pitch wind tuning stay free. Pro Lifetime is a one-time purchase that unlocks the full preset library, adjustable A4 reference pitch, and precision confidence controls. OneTune works offline. Audio is analyzed in memory on your device, is never recorded, and is never uploaded. No account, ads, or third-party tracking. Terms of Use: https://oneapps.studio/terms

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The developer, Freedom Dimension (shenzhen) Technology Co., Ltd, 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
    • Freedom Dimension (shenzhen) Technology Co., Ltd
    Size
    • 16.3 MB
    Category
    • Music
    Compatibility
    Requires iOS 18.0 or later.
    • iPhone
      Requires iOS 18.0 or later.
    • iPad
      Requires iPadOS 18.0 or later.
    • Mac
      Requires macOS 15.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 2.0 or later.
    Languages
    English and 2 more
    • English, Japanese, Simplified Chinese
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    • © 2026 Freedom Dimension (shenzhen) Technology Co., Ltd
  • Developer Website
  • Privacy Policy

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