This app converts your smartphone into a barometer or altimeter.

This app is the best barometer for measuring atmospheric pressure. It computes atmospheric pressure in psi and barometric units. It can also calculate the height above sea level in feet and meters. This app can be extremely useful for tourists who plan to engage in outdoor activities. It is a fantastic app that is ideal for mountain hiking.

An altimeter is designed to be used at various levels to identify the relating atmospheric pressure to the altitude, whereas a barometer is kept at a constant level and measures nuanced pressure changes caused by climate and weather elements.