ChordBankPro: Guitar Chords (iOS) app for $2.99

Over 2,100 chords. Left and right hand support. Progressions to help you write hit songs. ChordBankPro is the tool to turn hackers into pros. Full fingerings show you which fingers to put where, with barres clearly labeled to get you up and down the fretboard. Left handed? No problem. ChordBankPro lets you flip the fretboard around to show fingerings for lefties OR righties.+