Six strings.
One accord.
Akkoord is Dutch for chord, and for agreement. A guitar tuner that tells the truth, a chord atlas that follows whatever tuning you are in, and a song builder that gives its reasons. Plain, warm, and quiet by design.
Tuning as composition
“Sing to him a new song; play skillfully on the strings, with loud shouts.”
The Tuner
Truth, for a guitarist, is pitch kept honestly. Craftsmen still use the old word: a wheel is trued, a string is brought true. The tuner is Akkoord’s plumb line, strict to earn the lock, honest about holding it, calibrated to the cent. Skill begins in tune.
The Chords
A chord is six strings consenting to one another: akkoord, agreement, “with one accord.” The atlas teaches voicings as agreements: every root in red, thirds in yellow, fifths in blue, alternate shapes up the whole neck. Retune, and the shapes retune with you. Set the capo once, and the tuner, the chords, and your songs all follow it.
The Songs
Dutch keeps one word, schoon, for clean and for beautiful. That is the aim here. Build a song as a sequence of sections in any key, take a progression Akkoord suggests or write your own, keep your words beside the changes, and leave with a chart you can play from. Beauty is order, resolved.
The atlas follows your tuning
Drop into DADGAD and most chord references keep handing you standard-tuning shapes, which are simply wrong on that neck. Akkoord ships a hand-built shape set for each tuning it supports, and every shape is checked by machine against the strings it is actually played on before it reaches the app. Where a set is not ready, the atlas says so instead of guessing.
Six tunings carry their own curated shape sets. The three that keep standard intervals share one set, because the same grip really is the same grip there. Only the sounding names move, and Akkoord names them correctly.
From a progression to a chart
Give it a key and it suggests progressions worth playing, each with the reason it works. Bring changes you already hear and it names them back to you. Either way you leave with something playable, in the key you want, at the capo position that puts the song back on open strings.
A song is a sequence of sections. Add verses, choruses, and bridges, repeat them, and reorder the whole form when the song wants a different shape.
Every verse shares one progression, and each verse keeps its own words. Same for choruses and bridges, which is how songs actually work.
Each suggestion states its reasoning in one honest line, so you learn the logic behind a progression instead of copying chords off a screen.
Already know the changes? Build them yourself and Akkoord reads back what you have written, names it when the library knows it, and re-spells it whenever you move the song to another key.
Set a tempo, a word for the feel, and the meter: 4/4, 3/4, or 6/8. Small marks, but they are exactly what a chart is missing when you come back to it in a month.
Take the song out as clean text or a printable chart, with the form, the chords, and your words in place. Private notes to yourself stay behind.
The language, kept
Harmony through order
The look owes a debt to Dutch design: beauty through function, nothing decorative, everything meaningful. Seven colors in the whole app. A grid the fretboard got to first. And primaries that mean something:
Nothing leaves your phone. No accounts, no ads, no analytics. The microphone is analyzed on-device and never recorded. The privacy label reads Data Not Collected. We like it that way.
All of it, to IJM
International Justice Mission.
Akkoord was not built to earn anything. Every dollar it makes goes to IJM, a global organization that protects people in poverty from violence. IJM partners with local authorities around the world to combat trafficking, slavery, violence against women and children, and police abuse of power. Boot Canyon Advisory keeps none of it, and the app carries no ads and sells nothing inside itself.
Get Akkoord
Akkoord is on the App Store for iPhone, $6.99, with every dollar of it going to International Justice Mission. No ads, no subscriptions, and nothing to buy inside the app.
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