Aviation Altimeter for Watch2.10 - App Store

The Pilot's Choice!
A complete, full-featured aviation altimeter running inside your Apple Watch Series 3 or higher!

A real barometric Altimeter, not GPS-based. Authenticl Altimeter dial with digital readout!

This altimeter allows you to set the field altimeter setting (QNH). The Altitude can be displayed in Feet, Meters, or Flight Level. You can also display the raw barometric pressure. The Kollsman window allows setting the local pressure in either inches of mercury or hectoPascals (millibars). Completely International!

Once you load the App from your phone and set your preferences with the companion iPhone App, the watch Altimeter is completely independent of the phone. Use this App without a phone nearby and without any internet connection. Set Preferences directly on the watch by Swiping left.

Swipe to the right and see your current density altitude by using the watch crown to set the ambient temperature.

Tap the AltAlert button and set a desired target altitude and range. The will show you graphically when you go out of bounds.

An extra bonus feature is an oxygen alarm to remind you haptically and visually when you exceed 12,500 ft. The alarm only functions when the Altimeter App is running on the face of the watch!

This app is Flight Tested, but NOT FAA TSO-certificated and can not be used as a primary flight instrument!

This App only works on Apple Series 3 and later Watches! Remember to allow the app to use the Fitness & Motion sensors in "Settings"

Tl;dr:
Swipe left to change Units, swipe right for Density Altitude, tap the left button to adjust the Station Pressure. Tap the right button for Alert Alert settings

Version History This is a maintenance update for WatchOS 8.5.
The altimeter dial is a bit larger now.

Thanks for using the App! Fly Safe! 2.10 08/31/2022 Now compatible with Series 7 watches and WatchOS 8. 2.08 11/19/2021 Ready for WatchOS 8 and iOS 15
Watch App runs independently of iPhone
iPhone App has graphic user directions 2.07 09/30/2021 Bright and shiny for WatchOS 6
A minor bugs smashed 2.06 05/05/2020 Merry Christmas and Happy New Year!
We have added the full set of watch face Complications for instant Altimetry!
We now support the big graphic complications on the new faces for Series 4 and 5
Fly Safe! 2.05 12/18/2019 New: Watch Face Complications for Quick Launch!
New Feature: Altitude Alerting!
Larger Digital Altitude Display!
Many efficiency updates under the hood for WatchOS 6 2.04 12/02/2019 Squashed a bizzarre bug where the app only reported a fixed altitude. Also refined sensor coding and other minor, internal performance tweaks. 2.03 03/26/2019 Improved graphics for Series 4 Watches. 2.02 03/20/2019 Major Update! Aviation Altimeter for Watch now has an easy to read Analog Altimeter dial Plus a Digital readout! You also get an easy to use Density Altitude calculator! Version 2.01 adds a Help view on the paired phone App for the new watch app. 2.01 03/15/2019 Major Update! Aviation Altimeter for Watch now has an easy to read Analog Altimeter dial Plus a Digital readout! You also get an easy to use Density Altitude calculator! 2.0 03/14/2019 Improved screen layout for Series 4 Watches.
Refined layout for supporting iPhone companion app. 1.04 03/06/2019 Improved the altitude smoothing.
Add explicit directions to allow the Privacy settings for the App to see the barometer sensor. 1.03 02/18/2019 Improved smoothing of Altitude reading
Kollsman (QNH) setting now starts at your previous value 1.01 09/07/2018 1.0 08/29/2018