
Fretboard Matrix
Guitar shapes, scales and TAB
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Free
In-App Purchases
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About
Fretboard Matrix requires Fretboard Matrix Pro to use. Pro is available as a monthly or annual subscription, or a one-time lifetime purchase. The annual plan includes a 7-day free trial. Every feature described below is part of Pro.
Most guitarists practice the same handful of shapes for years. Fretboard Matrix exists to break that loop.
Choose a key, a scale, and how many notes per string to use, and it finds melodic shapes that fit those constraints anywhere on the neck. Not scale diagrams to memorise. Playable melodic shapes you have probably never put your fingers on.
HOW IT WORKS
Set the root and the scale, then set two constraints: how many notes fall on each string, and the widest fret span your hand can reach. Press Generate. Every shape it returns is playable within those limits, so nothing it gives you is a stretch you cannot make.
Skip a string entirely, mix two notes on one string with three on the next, or widen the span and watch shapes appear that were impossible a moment ago.
EIGHTEEN SCALES
Major and Major Pentatonic. Minor, Locrian, and Dominant sharp 9 Pentatonics. Harmonic Minor, Melodic Minor, Harmonic Major, and Melodic Minor sharp 5. Augmented, Whole Tone, and both Diminished scales. Messiaen modes 3 through 7.
All scales can be viewed in all 12 keys, with a full 12- or 24-fret mapping of the scale across the guitar neck.
PRACTICE IT
Loop a shape at any tempo with a metronome. Or move it:
- Diatonic: the same shape walked up through every degree of the key
- Cycle of fifths: the same shape through all twelve keys
- Positions: the same idea rebuilt in different regions of the neck
The neck follows along note by note as it plays, and the view moves to the next position just before it sounds, so you are reading ahead instead of catching up.
READ WHAT YOU PLAY
Every shape comes with standard notation and tablature, side by side, highlighted in time with the audio.
KEEP WHAT YOU FIND
Save any shape to your library with a name and come back to it later.
ON EVERY SCREEN YOU OWN
One purchase covers iPhone, iPad, and Mac.
PRIVATE BY DESIGN
No account. No analytics. No tracking. No network requests at all. Everything you make stays on your device.
Built for guitarists who would like a practice tool to explore new shapes, scales, and possibilities.
SUBSCRIPTION DETAILS
Fretboard Matrix Pro unlocks the entire app. Choose one:
- Pro Annual: $29.99 per year, with a 7-day free trial
- Pro Monthly: $3.99 per month
- Pro Lifetime: $59.99 once, no subscription
Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Payment is charged to your Apple Account at confirmation of purchase. Manage or cancel at any time in your Apple Account settings. Any unused portion of a free trial is forfeited when a subscription is purchased. The lifetime unlock is a single payment and does not renew.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://willross864.github.io/fretboard-matrix-site/privacy/
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What's New in Fretboard Matrix
1.0
October 14, 2026
3
Subscriptions & In-App Purchases
Pro Monthly
Monthly Subscription
$3.991 Month



