For learning scales, you need nothing else. This app is everything you need to learn the scales of your fretboard. I have been learning to play 6 string bass, struggling to find charts and other resources that would teach me all the scales i could use. This app does just that and more. A built in metronome, a way to focus on just the notes of a single position, visualising intervals, and more for any scale. You can even tap the notes and hear them which can help you know if you're out of tune.
A Google user
July 12, 2019