Measure air pressure in a number of different units: inches mercury (inHg), kilopascals (kPa), millimeters of mercury (mmHg), atmospheres, hectopascals (hPa), or pounds per square inch (PSI).
Use your GPS-determined altitude to estimate air pressure at sea level to compare with weather stations around the world! Uses super-accurate reference to find very accurate altitude based on GPS location.
Using changes in pressure, the app displays an approximate elevation change from a reset point that you control.
View raw or adjusted pressure quickly using a Today Widget in Notification Center! This functionality requires an in-app purchase.
This app displays the current pressure as detected by the barometer sensor inside iPhone.