ChordInvert app for iPhone and iPad

ChordInvert™ is a graphical reference and a learning tool for major and minor chords and their inversions. Look up the key signature and component keys for the root chord of any key, along with its first and second inversions. ChordInvert displays component keys three ways: as notes on a musical staff; highlighted keys on a piano keyboard; and note names, including sharps and flats.
Use the Quiz tab to build your mastery of the notes for all the major and minor chords and inversions. Your Quiz tab score tracks your progress and makes the learning more fun.