Guitar Lens: Chords & Triads

Music theory & fretboard quiz

Free · In‑App Purchases

Guitar Lens: Chords & Triads helps you learn the three-note chord shapes that unlock the whole fretboard. LEARN THE SHAPES - Pick a root, chord type, strings and inversion, then see and hear the shape note by note - Watch major turn into minor as one note, the 3rd, moves one fret - Root position and both inversions, color-coded, with the root circled - See every position on the neck when you're ready - Left-handed? Flip every fretboard and chord chart with one tap A SHORT, SIMPLE LESSON - Scales, chords and triads in plain language, with every key a tap away - Inversions explained with one hands-on example - All 23 chord types, each built step by step from the major scale TEST YOURSELF - Daily Fretboard: five shapes a day, the same for everyone, with a spoiler-free score to share - Find it: you're given a chord, you find it on the neck - Name it: a shape appears, you name the root, chord type, inversion and notes. Many shapes have more than one right name, and every one counts - Spell it: you get a chord name and spell its notes; every miss shows the rule - Shape check: name the chord type and inversion from the shape alone - Learn the notes of the fretboard with a quick note quiz - Smart practice: missed shapes come back sooner, and "mastered" means right and fast after two weeks away STAY MOTIVATED - Build a daily practice streak - Earn 13 badges as you learn FREE TO START Major and minor triads are free on every root and every string set, and they always will be. Unlock all 23 chord types with a monthly ($0.99) or yearly ($9.99) plan, each with a 7-day free trial, or a one-time lifetime purchase ($29.99). No ads, no account. Great for players who know a few open chords and want to move up the neck. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

  • 5.0
    out of 5
    2 Ratings

- Now on iPad: the neck fills the screen, and every answer is easy to tap. - Now on Mac: runs on any Mac with Apple silicon. - Ready for iPhone Duo: works folded and open, clear of the camera. - Bigger answer buttons in Name it on iPhone. - Turned sideways, screens stay clear of the notch.

The developer, JAMES ANDREW HOUSTON, 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 Linked to You

    The following data may be collected but it is not linked to your identity:

    • Purchases
    • Usage Data

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

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

Seller
JAMES ANDREW HOUSTON
Size
6.1 MB
Category
Music
Compatibility
Requires iOS 15.0 or later.
  • iPhone
    Requires iOS 15.0 or later.
  • iPad
    Requires iPadOS 15.0 or later.
  • iPod touch
    Requires iOS 15.0 or later.
Languages
English
Age Rating
4+
In-App Purchases
Yes
Copyright
© 2026 James Houston