From what I have determined, the altitude being shown is the uncorrected altitude without geoid correction. I am not familiar with exactly how this correction works normally, but I have several other apps on this phone and all of them are showing the same uncorrected altitude unless the app specifically has an option to make the geoid correction in the app itself. I come from an iPhone 6 and I never had an issue with an incorrect altitude, so I am not sure if this is a failing of the phone or the apps. Can someone please help me? You can sort of see the problem here. The altitude being shown in Gaia GPS map is 486 feet, the uncorrected altitude.
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