Features Users Want Most in Altimeter Apps

"This altimeter is ok but it only gives a sea level altitude. This app would get 4 stars of a rating from me if one could set it to either AGL and or for Sea level. A Kollsmen window and Barber pole would earn it 5+ stars"

"I like this app. I would like to see an enhancement allowing the user to zero current altitude and provide AGL (above ground level altitude.)"

"Barometric pressure at US airports is in inches, and no way to enter the local pressure to calibrate."

"Great app, just need the ability to calibrate by inches of mercury...."

"I'm in the woods and want to know what elevation it is. It says no internet. Yes you idiots I know the elevation where I live. I want the elevation of the mountain I happen to be on."

"What good is it if you have it on a touch, you have to be on a wi-fi for it to work. A real rip."

"It works great but I wish it would work while flying too and while in plain mode but it doesn't. I thought I red something that it works but it did not. That was the main reason I got it."

"I'm using it mid flight with fly-fi Wi-Fi and getting only 29 feet when I'm at 34k feet"

Build standalone Apple Watch app with native barometric sensor

9% of reviews complain about requiring iPhone connection despite Apple Watch having built-in altimeter and GPS. Users specifically want independence for activities like skydiving and hiking.

Implement persistent unit preferences with proper state management

18% of reviews cite this as major frustration. Simple fix but competitors consistently fail at it. Would immediately differentiate from all major competitors.

Add AGL mode with manual zero-setting and Kollsman window

Multiple aviation users explicitly request this feature. Shows understanding of pilot needs and creates premium positioning opportunity.

Support offline operation with cached elevation data

Users need altimeters most when hiking/camping without internet. Pre-download topographic data for regions or use device barometer as primary source.

Design high-contrast mode for outdoor visibility

Users explicitly state dark themes are 'completely invisible outdoors.' Outdoor use is primary use case, so readability in sunlight is critical.