ChordCraft

Auto Chord from Your Melody

Only for iPhone

Free · In‑App Purchases

iPhone

Play a melody, get chords. Change chords or the key, apply templates, and export your recording or a lead sheet PDF. Now available in English. ChordCraft suggests chord progressions for single-note melodies you play on your instrument. How to use: 1. Set the BPM and time signature, then start recording after the count-in 2. Play a single-note melody on piano, guitar, or another instrument 3. The app analyzes your melody, estimates the key, and adds chords 4. Change any bar's chord if you'd like something different Free features: - Microphone recording (single-note instrument melodies) - Real-time pitch detection - Automatic key estimation and chord suggestions - Change chords, change the key, add or delete bars - Playback of your recording with chords and bass Pro features (one-time purchase): - 9 chord progression templates (Royal Road, Canon, Jazz, Bossa Nova, Blues, and more) - Export your recording as WAV / M4A (accompaniment not included) - Lead sheet PDF export (melody and chords as printable sheet music) For songwriters who can come up with a melody but need help with the harmony. Note: Humming and chords (several notes at once) are not supported. Melodies played one note at a time only. Note: The lead sheet is based on automatic pitch detection and may contain wrong or missing notes.

Ratings & Reviews

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- Now available in English - Added a quick guide (shown on first launch; you can reopen it from Settings) - You can now browse the chord progression templates before purchasing - Added guidance when no notes are detected or the microphone can't be used - Fixed a crash when deleting the last remaining bar - Fixed recording and playback issues

Version 1.1

The developer, kou works, 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.

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    Accessibility

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    Information

    Seller
    kou works
    Size
    3.5 MB
    Category
    Utilities
    Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    Languages
    English and Japanese
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    © 2026 kouworks
  • Privacy Policy

    • More by kou works

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