Chord! is at the same time the simplest and the most complete chords and scales app for guitar or any fretted instrument like bass, ukulele, banjo, etc.
Unlike other chord charts app, Chord! doesn’t rely on a database of charts. Instead, it computes and analyses all the possible fingerings.
You don’t even have to know music theory to use it: behind its brute force, the app knows how to handle by itself some subtleties of music in order to give meaningful results.
If you don’t have to be an advanced player to use the app, you can however take a look under the hood and tweak the parameters if you like! Whatever is your level or your instrument, Chord! will adapt and give you the most precise answer.
This is the free version with fully functional chord search, but only 5 scales instead of 400 and 8 tunings, no reverse chord and scale search and no custom tunings database. The fingering engine is the same as the paid version.