FretNinja: Guitar Chords
Music
$2.99 · Designed for iPad. Not verified for macOS.
Every chord, every voicing, everywhere on the neck — with smooth voice leading between them.
A chord is not a shape. FretNinja shows you every voicing a chord has, everywhere on the neck.
Type any chord — Cmaj7, F#m7b5, a slash chord like G/B — and FretNinja lights up a playable voicing on a real fretboard, with the ghost map glowing behind it: every tone that chord owns, anywhere on the neck. Flip through dozens of voicings, hear each one strummed or arpeggiated, and see notes, degrees, or fingerings at a glance.
Build a progression and FretNinja finds voicings that move as little as possible from chord to chord — see exactly which fingers hold and which move. Tap a shape you found on your own guitar into the Identify view and FretNinja tells you what you're playing.
Works with alternate tunings, left-handed mode, and 7-string guitars. Everything runs on your device: no account, no network, nothing collected.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, James Collier, 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.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- James Collier
- Size
- 1.6 MB
- Category
- Music
- Compatibility
Requires iOS 17.6 or later.
- iPhone
Requires iOS 17.6 or later. - iPad
Requires iPadOS 17.6 or later. - Mac
Requires macOS 14.6 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.3 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 James Collier

