This app calculates the vertical and the horizontal acceleration and displays them separately.
+++Cautions+++
Vibration will affect the accuracy.
Zero-drift of the vertical acceleration may occur because of the sensor accuracy and/or the latitude difference of gravity.
Dont use this app where accurate and/or precise measurement is required.
Dont use this app in the place where the use of electronic devices are prohibited.
Dont use this app while vehicle driving or machine manipulating.