Built for guitarists, by a guitarist

Two guitars. Zero rehearsal. Instant music.

redLUX Guitar builds a strong chord progression in any key in seconds, so you and a friend can start jamming original music the moment you sit down — no shared setlist required. From that first jam, grow it into a full song with lyrics, scales, and a complete practice studio. Entirely offline. No accounts. No ads.

11Creative & practice areas
7Languages supported
0Accounts or trackers
redLUX Guitar Harmony screen showing the Circle of Fifths key wheel with C major selected, its diatonic chords, and a quick link into Progression Studio
SecondsTo build a progression
100%Offline after download
AllTunings, lefty & 7/8-string
0Data collected
A complete creative studio

From the first chord to the finished song

Everything that happens between picking up a guitar and finishing a song — built into one focused, glare-friendly app for late-night sessions.

Instant progressions

Pick a key and a vibe — get a strong chord progression to play over immediately, with two guitarists soloing within seconds of sitting down.

Intuitive scale maps

Every scale built on a pentatonic backbone — tonic as a glowing red ring, flavor notes as red triangles, foundation notes as grey dots.

Songwriting & lyrics

Turn a jam into a real song. Add lyrics, organize your originals, shuffle your repertoire, and share when you're ready.

🎚

Improv & arpeggios

Combine scale positions, arpeggios, triads, and custom elements to practice exactly what you want to master.

🎧

Tuner, metronome & record

An accurate tuner, a metronome with real drum grooves, and the ability to record over your own backing tracks.

🌐

Everyone's instrument

Left-handed mode, 7- and 8-string guitars, bass, and ukulele — fully supported, not bolted on.

See every feature →

"I built the tool I always wished existed—something I'd rely on every night, even in the middle of nowhere. No signal. No excuses. Just creation."

— Frank, creator of redLUX Guitar

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Built offline. Priced honestly. Made to be played.

No accounts, no ad trackers, no subscriptions designed to extract more than the app is worth. redLUX Guitar is coming soon to the App Store.