Having a hard time playing your favorite motion-based racing game ? Is your phone's accelerometer sensor giving inaccurate results? Then accelerometer calibration is the app for you. The performance of your phone's accelerometer deteriorates over time . So it is very important that calibration is done from time to time. FEATURES: -> Easy accelerometer calibration process. -> Move the red dot on the screen into the black square and click on calibrate. -> AutoCalibrate option which notifies you