FretGenius

Feel lost on the neck, stuck in the same old shapes, or frustrated that music theory never turns into real playing?
FretGenius turns confusion into clarity with an interactive fretboard you can see, touch, and drill—right on your phone or tablet.

VISUAL LEARNING THAT CLICKS
• Realistic fretboard for guitar, bass, ukulele, banjo and mandolin
• Standard and alternate tunings, left- or right-handed view, adjustable fret count
• Note names, scale degrees or interval labels—switch instantly to see the big picture

INSTANT SCALE EXPLORER
• Light up any scale (major, minor, pentatonic, modes and more) across the whole neck
• Color-code each degree to understand tension and resolution at a glance
• Built-in step-pattern overlay demystifies how every scale is built

INTERACTIVE NOTE QUIZ
• Random note challenges inside the range of frets and strings you choose
• Immediate correct / incorrect feedback plus equivalent note highlights
• Track score and success rate so you know exactly where you’re improving

DEEP CUSTOMIZATION
• Light or dark theme, wood-grain or flat style, adjustable note-circle size
• Prefer sharps or flats? One tap switches notation
• All settings saved locally—pick up right where you left off

CROSS-PLATFORM & LIGHTWEIGHT
The same experience on all platforms and the web. No account required, no ads cluttering your practice.

BUILT WITH MUSICIANS IN MIND
We listen. Send bugs or feature ideas through the in-app form and help shape the next update.

Stop guessing and start seeing the music you play.
Download FretGenius today and unlock true fretboard fluency on every stringed instrument you own!