Guitar
6 strings · 5 tunings
Standard tuningE · A · D · G · B · E
Other tunings
GuitarElectric guitarCavaquinhoUkulele
All the harmony of the neck, in your pocket.
Build a shape on the neck and the app tells you the chord. Hear each position before you play, tune up, keep time and take your charts to rehearsal. Works offline, with no ads.
Build a shape and the app names the chord. Hear each position, tune up and keep time, offline and with no ads.
Opens straight in Google Play on your phone.
Coming to iPhone soon.
Meanwhile, the chords, scales and progressions are open here on the site. Explore free in your browser →
Coming soon to the App Store
On a computer? Point your phone’s camera here and get it there.
On iPhone? The iOS version is on its way.
Coming soon to the App Store- Free to download
- No sign-up
- Works offline
- No ads
Free · no sign-up · works offline
492 chords
57 scales across the whole neck
218,399 voicings and inversions mapped
16 tunings on 4 instruments
Identify Chord
Found a shape you like? Find out what chord it is.
Tap the frets and strings the way you would really play them: open, muted or fretted, with a barre. The app recognizes the chord, shows its name and the other possible readings, and plays it.
- Build the shape
Mark your fingers on the on-screen neck.
- Hear it right away
Sound by physical synthesis, with no recorded samples.
On the free plan: 5 identifications a day. With Pro, no limit.
Download free and try it →
You build
× 3 2 0 0 0
The app answers
C7M · Exact
To play today
Tune, keep time and change key without leaving the app.
The Metronome and the Rhythm Trainer are free, and the Precision Tuner is free in each instrument's standard tuning. Transpose the chart to the singer's key and read it with auto-scroll at rehearsal.
To understand
Understand harmony right on the neck.
The Circle of Fifths with the chords of each key, Cadences to hear and compare (9 free), Reharmonize with the reason for each swap and the Jazz Lab on the neck.
4 instruments · 16 tunings
Your instrument, tuned the way you tune it.
Each instrument with diagrams drawn for its own neck, the tuner in standard tuning and left-handed mode. Do-Re-Mi or C-D-E notation.
Electric guitar
6 strings · 4 tunings
Standard tuningE · A · D · G · B · E
Other tunings
Cavaquinho
4 strings · 3 tunings
Standard tuningD · G · B · D
Other tunings
Ukulele
4 strings · 4 tunings
Standard tuningG · C · E · A
Other tunings
- Tuner in standard tuning, free
- Left- or right-handed
- Do-Re-Mi or C-D-E notation
Each instrument's standard tuning is free. Alternate tunings redraw the chords on the neck and are part of Pro.
No fine print
What to know before you install.
No ads
Not on the free plan, not on Pro.
No sign-up
Use it without an account. The account is free and only required to subscribe.
Works offline
Chords, sound, tuner and metronome run on the device: on stage, at a jam or on the subway.
No song catalog
The app does not come with ready-made songs. The charts are the ones you paste or write.
Identify Chord by your fingers
You mark the shape on the screen. Chord recognition does not use the microphone.
Your data, your call
With an account, you delete it in the app itself, in Settings › Account › “Delete Account”, and download your data as a file under “My data and privacy”.
Pricing
Start free; subscribe when you want.
The essentials are free forever. You subscribe inside the app, through Google Play, and cancel whenever you want.
Monthly, annual and lifetime open the SAME Pro — only how you pay changes.
Free download
Use the Free plan right away, no account
If you want Pro, you pick the plan inside the app and subscribe with your store account.
Coming soon to the App Store
Coming soon to the App StoreComing soon to the App StoreFree
$0forever
No sign-up, no card.
Monthly
$6.99/mo
No lock-in. Cancel whenever you want.
Save 58%14 days free
Annual
$83.88 over 12 months(paying monthly)$34.99/yr
Works out to $2.92 a month.
One-time
Lifetime
$174.99once
Pay once. No renewal, ever.
14 days free on the annual plan, for anyone who has not tried Pro yet. The store decides who is eligible. Nothing is charged on this site.
The Free plan includes, forever:
- Any chord or scale, with the other positions and the sound of each chord
- Metronome and Rhythm Trainer
- Precision Tuner in standard tuning
- Circle of Fifths, Progressions by Rhythm and the Chord Library
- Up to 20 charts in My Charts, with transposing
- Identify Chord: 5 a day
Questions
Before you download.
How much does it cost?
The essentials are free forever. Pro is a subscription: $6.99/month or $34.99/year (save 58%), with 14 days free on the annual plan for anyone who has not tried Pro yet. You cancel whenever you want. There is also a lifetime unlock: $174.99, a one-time purchase — pay once, no renewal.
Does it work offline?
Yes. Chords, scales, sound, tuner and metronome run on the device. Only syncing between devices and, now and then, confirming the Pro subscription need the internet: the app keeps a pass good for about 30 days, with roughly 7 more of grace.
Do I need an account?
Not to use the app: it works without signing up. The account is free and only required to subscribe, because that is where the subscription is kept. With Pro, it also syncs your charts, scales and settings between devices.
Is it on iPhone?
Not yet. The iPhone version is on its way.
How does the app find the chord?
You mark on the screen the frets and strings you would play, and the app recognizes the chord, with its name and the other possible readings. It does not use the microphone for that.
Build a shape, hear its name.
Free to download, no sign-up and no ads. Works even where there is no signal.
Opens straight in Google Play on your phone.
Coming to iPhone soon.
Meanwhile, the chords, scales and progressions are open here on the site. Explore free in your browser →
Coming soon to the App StoreOn a computer? Point your phone’s camera here and get it there.
On iPhone? The iOS version is on its way.
Coming soon to the App StoreExplore free in your browser
Look up chords, scales and progressions here on the site. In the app, each chord comes with the other positions and the sound, and the tools work offline.