Not a sponsored list. We analyzed 76 real negative reviews from the top Altimeter apps. Here's what each one gets wrong — so you can pick the least broken one.
Complete failure to persist unit settings - resets to meters every session despite users setting feet
"The Apple Watch compatibility will not save the feet measurement so it defaults to meters every time you open it. Frustrating!"
"Most general aviation and commercial aircraft use feet for elevation and not meters. This app allows you to change to feet but every time it leaves the screen and you have to come back to it you have to change it from meters back to feet."
Developer removed purchased version and forced users to repay for renamed version with no new features
"I paid for the upgraded version of this app. The developer literally removed it, changed the name of the version which literally does nothing new now I am required to pay again. Please do not support developers that u"
"Very limited view. To increase distance have to buy another app."
Completely non-functional with extreme inaccuracy (135 ft vs 8 ft actual, 29 ft vs 34,000 ft actual)
"My home is 8 MSL, however the app says 135 MSL"
"I'm using it mid flight with fly-fi Wi-Fi and getting only 29 feet when I'm at 34k feet"
The altimeter app market has significant opportunity due to widespread accuracy issues (25+ reviews), broken watch integrations, and poor unit preference persistence. Users are willing to pay but current apps fail at core functionality - GPS/ASTER readings are off by 30-200 feet, watch apps don't retain settings, and calibration UIs are confusing or non-functional.
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