A seriously deep guitar tuner, and the whole song charted before it plays.

Point Chartless at a song and it reads the entire thing first: the key, the tempo, the meter, the downbeats, and the chord on every beat. Then it plays the song back with the chart already on the screen, one bar lit at a time. No guessing at the edge of the audio. Tap any bar to loop it.

THREE WAYS IN
Mic: chart what your band or your own guitar is playing right now.
Web player: chart a video straight from the player's audio, ahead of time. Vocalists, this one's for you: it tells you the key, so you know what to tell your worship leader.
File: chart a whole recording before you press play. Share a link from any app and Chartless picks it up.

THE TUNER
Here's what deep means. Four modes: a single-note needle, a strum mode that reads all six strings from one strum, a strobe, and a 3D mode with thirteen ways to watch pitch, from a beat helix to a sakura storm. Equal, sweetened, and just intonation, with just tuned to the key of the last song you charted so open chords ring pure. Capo-aware, so you tune with it clamped. Thirty-plus tunings from standard through DADGAD, baritone, 7-string, 5-string bass, mandolin, banjo, cello, and dobro, plus your own.

Then the setup tools nobody ships: a guided intonation check with a saddle verdict, string freshness that hears when a set has gone dead, a stretch-tuning pass for new strings, a drone to tune by ear, and octave stretch curves for guitar and piano.

SWEETENED TUNING
A guitar tuned dead-on to the needle is not in tune with itself. Sweetened is one tap: each string nudged by an amount you'd never hear alone, and the chords you actually play stop fighting and start singing. It's not magic. It's arithmetic, done for you.

ANY TUNING, ANY INSTRUMENT
Pick your instrument and tuning and every chord diagram follows. Guitar, baritone, ukulele, baritone uke, mandolin, banjo, bass, piano, and Nashville numbers. Drop D, drop C, open G, open D, DADGAD, 7-string, left-handed. Standard shapes stay hand-made.

CAPO ADVISOR
Song in D-flat on a DADGAD guitar? "Capo 6, play G shapes," with the key you'd play in listed next to every fret.

TIME
4/4, 3/4, 6/8, and compound meters detected from the audio. Wrong? Pick it. Downbeat off? Tap the 1 while it plays. Tempo locked on the wrong pulse? Tap along and the decoder re-reads the song around your tap.

PRACTICE ROOM
Build a progression or import it from any charted song, set the tempo, pick a time signature, and loop it. Voice-led chords from a synth pad or 120 sampled General MIDI instruments, an arpeggiator, a click, and a fingering diagram that follows your instrument.

STAGE MODE
Chord as big as the phone, the next one underneath, beat dots, key and tempo, and your own brightness slider so a dark stage stays dark.

FOLDABLES
Fold your phone halfway and it's a music stand: the chord stands up top, the chart and controls lie flat under your hand, nothing sits in the crease.

CHORD SHEETS
Every chart becomes a chord sheet you can clean up, then export as a PDF or send to the practice room.

STRINGS
Add your instrument and the set that's on it. Fingerprint a fresh set, and every check after that tells you how far the strings have drifted and about how many days are left.

PRIVATE
Classic signal processing on the phone. No AI, no cloud, no account. Audio is never uploaded, never recorded, never used to train anything. Songs you chart stay on your device.

Questions, or a song it got wrong: chartless@creedysolutions.com

CHARTLESS PRO
Everything is open for your first 7 days. After that the single-string tuner, the drone, and 10 minutes a day of Simple charting stay free. Pro is $39.99/year with a 7-day free trial, or $9.99/month, billed through Google Play. Renews automatically until you cancel; cancel anytime in Play Store > Payments & subscriptions.

Privacy: https://chartless.creedysolutions.com/privacy