Altimeter Barometer : ISOBAR

ISOBAR turns your iPhone into a precision altimeter and barometer. Every altitude it reports arrives with the one thing most apps leave out, an honest margin of error, so you always know how far to trust the number. WHAT YOU GET - One button, fifteen seconds, and an altitude you can defend - Every reading carries its own uncertainty, shown in metres or feet - Readings combine the barometric sensor, GPS and a terrain model - Calibration against the nearest aviation weather station - A pressure chart that shows weather turning before you feel it - Storm alerts driven by real pressure change, not a forecast feed - Works without a signal once terrain data is stored on the device BUILT FOR THE OUTDOORS - Track elevation gain across a hike, a climb or a ride - Save waypoints for home, trailheads and camps - Set a target height and watch the remaining climb count down - Correct weather drift…