Paid app ($2.99) — only Google Play can deliver it
All Chords & Scales for bass players
Bass Chords & Scales — description
Within this application you can visualize all chords and scales on your fretboard, display and listen corresponding notes structure. Use the 'Finder' tool to identify all chords or scales matching a selected notes set. The options menu lets you select night view mode, lefty fretboard view and arpeggio listening mode. This application implements functionalities of my well known music site http://chords.jpglomot.com/ and is declined for keyboard, guitar, bass and ukulele. All of them are free to download and use without extra charge.