SittingPosture CHECKER plus

　Would you like to check your posture? 　Set the marks at the positions which are forehead, chin, ear, shoulder, chest, hip, knee and ankle, and tap the "OK". You can get the angles as shown below. Face: the tilt angle of face line from the vertical line. Neck: the tilt angle of neck line from the horizontal line. Back: the angle that shoulder-chest-hip make.