ChordCraft Music Theory

Learn music theory by playing

Only for iPhone

$3.99 · Designed for iPhone. Not verified for macOS.

iPhone

New: cleaner practice flow and faster chord lookups. Start with the basics or push into jazz voicings — ChordCraft meets you wherever you are. No ads, no account, ever. Learn, play, and master music theory — all in one beautifully simple app. ChordCraft takes you from your very first note to confident chord progressions and ear training, with short interactive lessons and hands-on practice you'll actually look forward to. No account, no ads, no internet required. Just open it and play. START WHERE YOU ARE Take a 2-minute placement test to get your Music Theory Rating, or skip it and dive straight in. Either way, ChordCraft meets you at your level. EVERYTHING IN ONE PLACE - Learn the Basics — interactive lessons from zero - Note Reading — identify notes on the staff - Chord Practice — identify and build chords, from triads to extensions - Chord Progressions — Roman numerals and real songwriting moves, with a Builder and a Generator - Ear Training — recognize intervals and chords by ear - Rhythm — tap along and read rhythmic notation - Free Play — play any chord and ChordCraft names it for you - Listen — play on a real instrument and ChordCraft names what it hears BUILT TO KEEP YOU GOING Track your progress with Stats, earn Awards, and watch your Music Theory Rating climb as you practice. PRIVATE BY DESIGN ChordCraft collects nothing. Everything stays on your device — no analytics, no ads, no trackers. The Listen and Free Play features use your microphone to recognize what you play; audio is processed live on your device and is never recorded, stored, or sent anywhere. A one-time purchase. No subscriptions. Questions or ideas? Email danielsduderstadt@gmail.com — every message gets read.

Ratings & Reviews

  • This app hasn’t received enough ratings or reviews to display an overview.

The developer, Daniel Duderstadt, 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
    Daniel Duderstadt
    Size
    2.2 MB
    Category
    Education
    Compatibility
    Requires iOS 15.0 or later.
    • iPhone
      Requires iOS 15.0 or later.
    • iPod touch
      Requires iOS 15.0 or later.
    • Mac
      Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    English
    Age Rating
    4+
    Copyright
    © 2026 Daniel Duderstadt
  • Privacy Policy

    • Supports

    • Family Sharing

      Up to six family members can use this app with Family Sharing enabled.