Notes, intervals, chords and scales across the whole neck, learned away from the guitar a few minutes at a time.
You can already play. What is missing is the map: the note under your finger on the tenth fret, the shape that lands on the ♭3, the same chord in three places up the neck.
Mindfret times every answer, because speed is what separates knowing a note from working it out. Each note, interval and chord grip keeps coming back until you answer it at a glance, and the map colours the neck by how fast you are, from red to green.
Free to start: four of the six strings, five intervals upward from any root, and the minor pentatonic to play, to spot and to name. Mindfret Pro opens everything else for a single payment, never a subscription. No account needed, and it works offline.
Coming to the App Store.