strumProfessor is an arcade-style educational game that uses your device’s microphone and analyzes your playing. Chord symbols fall down from the sky and your mission is to destroy them by strumming on your (real) guitar before they hit the ground. Each level brings new chords, faster tempi and a different level goal. There are 32 levels that contain a balanced training program for 26 most common chords. You can build your own levels by choosing your own chords and tempo. Some levels train your left hand dexterity and speed, some train your memory and endurance.
strumProfessor website