Turn your phone into a real working aircraft altimeter.
* Touch and drag to set reference pressure.
* Set reference pressure based on nearby METAR stations.
* Altitude in metres and feet.
* Pressure in hPa, mbar, or inHg.
* Easy to use.
This app is only available for devices with a built-in barometric sensor.
This is not an approved aircraft instrument. This software program can not take the place of an approved and properly calibrated aircraft altimeter. For education purposes only.
This altimeter will not work inside a pressurised cabin, like those found on an airliner: it will show cabin altitude, not actual altitude.
There are ad-free versions available here:
https://play.google.com/store/apps/details?id=st.crosscheck.realaltimeter (no auto calibration)