The most visual, interactive guitar theory companion. Scales, chords, CAGED, real progressions, alternate tunings, practice drills, and custom printable fretboard maps — all connected, all in one place.
Major, minor, all 7 modes, pentatonic, blues, whole tone, and diminished. Every scale shows its formula, degrees, and up to 5 position boxes.
From basic triads to altered dominants and 13th jazz chords. Every chord shows curated, physically playable fingering diagrams across open, mid, and high neck positions.
A full guide to all 5 shapes with interactive fretboard overlays. See exactly where each shape sits for your key and how they connect across the neck.
Named progressions across 16 genres — Pop, Rock, Blues, Jazz, Latin, Motown, Gospel, Reggae and more — plus 18 song-based examples and a custom builder. Hit Play and hear real guitar audio as the fretboard updates live.
Lock to any of 5 scale position boxes and the fretboard dims everything outside your box. Practice one position at a time without getting lost.
Hear every chord played back with real sampled guitar notes. Tap any chord in the library or let the progression player cycle through at your BPM.
The biggest update yet: build and share your own diagrams, identify any chord you can play, track your practice streak, and see the whole neck just by turning your phone.
Tap notes anywhere on the neck and color-code them with 8 colors. Start blank or fill from any of the 14 scales and 42 chords, then edit. Horizontal or classic chord-chart vertical layout.
Turn any map into a clean, print-ready PDF — lesson handouts, licks, voicings. Note names, interval symbols, or fingering numbers on every dot, plus ✕/○ string markers, chord-chart style.
Tap the notes you're playing and Fretionary names the chord — including partial voicings like no-5 shells and jazz rootless shapes. Reverse-engineer anything you stumble into.
A daily pick to explore, a streak that grows with every day you practice, and counters for the scales, chords, and progressions you've actually played. Practice becomes a habit.
Turn your phone sideways on the Fretboard tab and the whole neck fills the screen — all 15 frets at once, no scrolling. Rotate back and the app returns to normal.
C Dorian reads E♭ and B♭ — not D♯ and A♯. Every scale, chord, and key is spelled the way a musician writes it, flat keys included, everywhere in the app.
Tools that make Fretionary work the way real guitarists practice — across tunings, with smart suggestions, and built-in drills to keep you sharp.
Drop D, Drop C, DADGAD, Open D / G / E, Eb & D Standard. The fretboard recalculates every note for the active tuning. Standard and Drop D are free.
Every chord shows where it commonly resolves to with the voice-leading reason — V7 → I, sus4 → major, ii° → V. Tap a card to jump straight there.
Three modes — Name the Note, Find the Note, String Drill — across three difficulty levels. Build real fretboard memory with quick-fire rounds.
BPM 40–240, six time signatures including 6/8 and 7/8, accent + offbeat clicks, tap-tempo, and a drift-corrected timer that stays steady even at 200+ BPM.
Heart any chord, scale, or progression to save it for later. Recents auto-track the last 20 you've explored. One ♥ Saved sheet, available on every tab.
An in-app feature catalog with Free / Pro markers on every item, plus quick-jump links to each section. Discover everything Fretionary can do in one screen.
Voicings sourced from real guitar pedagogy — open chords, barre chords, and jazz shapes across the full neck. Not algorithmically generated. Actually playable.
The CAGED system links 5 repeating shapes that cover the whole neck. Once you know all 5, you can play any chord or scale anywhere — in any key, at any fret.
64 progressions across 16 genres, plus 18 song-based examples — and a custom builder that lets you stack any chord from any key. Hit Play and hear real guitar audio while the fretboard shows you every chord shape in sequence.
| What you get | Free | Pro |
|---|---|---|
| Interactive fretboard | ✓ | ✓ |
| Scales & modes | 4 | All 14 |
| Chord types with voicings | 8 | All 42 |
| Chord progressions | 4 | 64 + 18 song examples |
| Custom & diatonic progression builders | ✓ | ✓ |
| Progression audio playback | — | ✓ |
| Maps — custom diagrams & PDF export | — | ✓ |
| Identify — name any chord you tap | — | ✓ |
| Tunings | 2 | All 9 |
| CAGED system guide | ✓ | ✓ |
| Position highlighting (Pos 1–5) | — | ✓ |
| Practice drills | Name the Note (Beginner) | All modes & difficulties |
| Metronome | ✓ | ✓ |
| Progress, streaks & daily pick | ✓ | ✓ |
| Landscape full-neck view | ✓ | ✓ |
| Favorites & recents | ✓ | ✓ |
Available on iOS and Android.