What is the best app to learn the CAGED system?

For seeing the whole CAGED system interactively across the neck, Decage is purpose-built for it. Courses like JustinGuitar teach CAGED in lessons; Decage lets you operate it as a live map.

Is Decage a Chordify or chord-finder alternative?

It is different, not a replacement. Chordify finds a song's chords and chord finders look up one shape. Decage maps where any chord lives across the whole neck.

How is Decage different from Fretboard Logic or Guitar Scientist?

Fretboard Logic is a static book; Guitar Scientist is a diagram editor. Decage is an interactive, guided map of the full CAGED system across the neck — a different category from a book or a diagram maker.

How is Decage different from JustinGuitar or other courses?

Courses like JustinGuitar are excellent structured lessons you watch in order. Decage is not a course — it's a live interactive tool you use alongside your guitar to see the neck as one system. They solve different problems and work well together.

An honest comparison

Decage vs guitar apps, courses & chord finders

Q: Is Decage a chord finder?

No. A chord finder like Fretjam's looks up one chord shape at a time. Decage maps the whole CAGED system across the neck interactively — pick a chord and every position lights up at once. It's a map, not a lookup.

Q: Is Decage like Chordify?

No. Chordify extracts the chords of a specific song so you can play along. Decage teaches you to see where any chord lives across the whole fretboard, independent of any one song.

TL;DR: The guitar-learning world is full of great tools — and most of them are great at something other than what Decage does. Courses teach lessons. Gamified apps grade your playing. Song apps find chords for one track. Chord finders look up one shape. Diagram editors let you draw charts. None of them is an interactive, hands-on map of the whole CAGED system across the neck. That's the one job Decage exists for.

What each tool is actually for

Tool	What it's great at	What it isn't
Decage	Interactive, hands-on map of the full CAGED system — pick a chord, every position lights up across the neck	Not a course, not a song player, not a grader
JustinGuitar	Excellent structured lessons, beginner → advanced	A linear curriculum to follow, not a neck you explore
Yousician / Simply Guitar	Gamified practice, listens and scores you	Focused on songs and feedback, not whole-neck understanding
Fretello	Guided practice routines	Not a free-form, full-neck visual map
Chordify	Extracts the chords of a specific song	Teaches songs, not how the neck works
Fretjam chord finder	Looks up a chord shape	A one-at-a-time lookup, not an interactive system you move
Guitar Scientist / Neck Diagrams	Build and share custom fretboard diagrams	Editors for making diagrams — not a guided, hands-on learning map
Oolimo	Deep chord dictionary & analyzer	An analyzer that can overwhelm visual learners
Fretboard Logic (book)	Strong written explanation of CAGED	Static pages — nothing moves or responds

This isn't a takedown. JustinGuitar is a brilliant course. Chordify is perfect for learning a song tonight. Use them. They just don't answer the question Decage answers.

The question only Decage answers

app that shows all CAGED positions of a chord across the neck

interactive CAGED system app

People search for this and land on courses, dictionaries, or static diagrams — because the interactive, full-neck CAGED map they're picturing barely exists. Decage is that map: a live reference you operate, not a lesson you watch or a shape you look up.

The honest line

Decage is not "the only interactive guitar tool" — chord finders and diagram editors are interactive too. What it is: the only interactive tool that maps the full CAGED system across the neck as a live, hands-on visual reference for visual learners. That precise thing is what nothing else does.

Questions people ask

Is Decage a chord finder?

No. A chord finder looks up one shape at a time. Decage maps the whole CAGED system at once — pick a chord and every position lights up across the neck.

How is it different from JustinGuitar or other courses?

Courses are structured lessons you watch in order. Decage is a live tool you use alongside your guitar to see the neck as one system. Different jobs — they pair well.

Is Decage like Chordify?

No. Chordify finds the chords for a specific song. Decage shows you where any chord lives across the whole fretboard, independent of any one song.

The one tool for the one job

An interactive, hands-on map of the whole neck. Lifetime access — no subscription.

Get Lifetime Access — $99 or watch the 30-second demo first →

More on Decage

guita.rocks — the interactive tool →
Open the fretboard and see Decage in action. The only interactive CAGED fretboard mapper →
Why no course, app, or chord finder does this. See the fretboard, don't memorize it →
The reframe for visual, non-linear learners. Stuck after open chords? →
The post-beginner gap, solved visually. Built by a programmer, not a guitarist →
Why it maps the neck instead of explaining it.