Both Accuracy *and* Precision
Straight out, this app was only off by 2 millibars from an aneroid barometer, calibrated at local NWS station.
Tweak difference in elevation and app is right on the money every time!
Will be very useful (and safe) for outings to gulf coast during tropical storm / hurricane season.
I also like how it matches Apples clock & pro version has > 1 scale.
Ol_Vinyl about
Barometer & Altimeter Pro, v2.4.3