A free app for Android, by Complete Think.
The Fretboard Learn Trainer is a learning tool for musicians of all levels. It can be used as an aid to memorize the notes of the fretboard on a guitar, bass, banjo, ukulele, or mandolin. It has five distinct game types that are designed to help you master your instrument. You can customize your practice session by selecting the range of strings and frets to focus on.
The Fretboard Learn Trainer app has multiple modes that allow you to choose between playing the games or listening to the sound of the instrument. The games are designed to help you learn to play the instrument by matching the name of the notes to their positions on the instrument.
