Fretlas

Fretlas turns your iPhone or iPad into a beautifully simple way to see how music sits on the guitar. Tap a root note, pick a scale or chord, and the entire fretboard lights up. Switch between standard tuning, Drop D, DADGAD, open tunings, and more — the layout updates instantly. Whether you're learning your first pentatonic or exploring Phrygian Dominant, Fretlas shows you exactly where every note lives on the neck. WHAT'S INSIDE • Over 70 scales, modes, and chord shapes — including 21 modal scales, 6 pentatonic and blues scales, 4 bebop variants, and 22 triad and chord types • Major modes — Ionian through Locrian • Melodic minor modes — Lydian Dominant, Altered, and more • Harmonic minor modes — Phrygian Dominant, Lydian #2, and more • Pentatonic and blues scales • Symmetric scales — whole tone, diminished, augmented • Bebop scales for jazz study • Exotic scales — Persian, Japanese, Neapolitan, Enigmatic • Triads, 7ths, 9ths, 13ths, altered dominants 11 TUNINGS Standard · Drop D · Drop C · DADGAD · Open D · Open E Open G · Open A · Open C · Half step down · Full step down DESIGNED FOR CLARITY • Color-coded intervals — root, 3rd, 5th, 7th • Light or dark fretboard • 12, 15, 22, or 24 fret view • Hide strings to focus on a section • Your last setup is remembered WHO IT'S FOR Beginners learning shapes · Intermediate players exploring modes Advanced players analyzing exotic scales · Anyone tuning beyond standard ONE-TIME PURCHASE The free version includes the most-used content. A single one-time purchase unlocks everything — no subscriptions, no ads, no recurring fees. Lifetime access. Built with care for guitarists who want to see music, not just hear it.