avAltimeter 1.25 - App Store

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About avAltimeter

Simple and Effective! avAltimeter is a digital, aviation-oriented altimeter. It is the only altimeter app which has the Kollsman adjustment so you can adjust the altimeter to the current barometer setting, or to 29.92...

Simple and Effective! avAltimeter is a digital, aviation-oriented altimeter. It is the only altimeter app which has the Kollsman adjustment so you can adjust the altimeter to the current barometer setting, or to 29.92 inches of mercury for the pressure altitude. Need a quick backup for your panel? avAltimeter uses the latest Apple and Bosch technology built into the iPhone 6 and later models. Earlier models of the iPhone and iPads before iPad Air 2 or Mini 4 do not have the required pressure sensing hardware and do not work. All iPad Pro models work too! Smart! avAltimeter calculates the temperature sensitive Density Altitude. Based on the Density Altitude, the app also calculates True Airspeed as a function of Indicated Airspeed. avAltimeter calculates a rough estimate of the increased required Take-Off distance from that at seal level from increased Density Altitude as well. You can even set the App to obtain automatically obtain the latest barometric pressure from the closest reporting airport. The barometer setting will auto-update every 20 minutes, or if you move more than 25 miles from your previous location. When using the live METAR update feature, the App will display which airport pressure it is using, and how old the reading is. This feature requires an internet connect and active GPS, so it will not work well if you are flying inside a jet. In a jet, the App works great to track the cabin pressure if you just leave the barometric pressure set at 29.92 inHg. Increased Safety! Know your oxygen requirements. avAltimeter tracks your altitude and provides a warning to use oxygen when you exceed FAA mandated limits. Customizable! avAltimeter is customizable. Choose Imperial or Metric units. Set the Altimeter Setting through a popup Kollsman window or by directly setting the field altitude. The field altitude can be set manually or automatically by GPS. Select Day or Night illumination. Turn the audio alarms for oxygen on or off. Improve the take-off performance estimate by selecting your propellor type: constant speed or fixed pitch. Sensitive! The Bosch sensor chip built in to the iPhone 6 and later is sensitive to changes in altitude of three feet or less and has an estimated range from -1500 feet to over 20,000 feet. Unique! Unlike other aviation apps, avAltimeter uses actual barometric pressure to calculate altitude, not a GPS estimate. The barometer is only available in iPhone 6 and later or the iPad iPad Air 2, Mini 4 as well as all iPad Pro! Legal Disclaimer This is an app, not an FAA approved flight instrument. It has not been certified as meeting the relevant TSO specifications. This app can not be used as a primary flight instrument.

Version History Major New Feature: Live setting barometric pressure from closest Aviation Weather reporting station. Updated for iOS 26. Many code tweaks for efficiency. 1.25 Jan 3 Maintenance update for iOS 17.5 1.21 05/22/2024 Updated for iOS 17. Removed usage tracking 1.20 02/05/2024 Fixed two issues related to Altitude Alerting when using iPad devices. 1.16 06/21/2022 More minor tweaks to the user experience. Refined iPhone 12 and 13 screen layouts 1.15 01/11/2022 Updated for iOS 15! 1.14 09/25/2021 Fixes a crashing bug when repetitively setting the OAT. The crash only occurred in iOS 13.4, but not anymore! Enjoy! 1.13 05/12/2020 Freshened up for iOS 13! UI Tweaks, and Dark Mode Minor code buffing under the hood. 1.12 05/01/2020 Major Update for iOS 13! New Feature: Altitude Alerting with Audio Feedback via Speaker or BlueTooth! Improved Digital Altitude display Refined Graphics and User Interface Many tweaks under the hood! 1.10 11/26/2019 Visual Alert for old Altimeter Pressure Settings Digital Altitude Readout Bugs Squashed improved iPhone X and iPad Formatting 1.0.8 01/26/2018 •Improved overlapping hands issue •Minor tweaks •Verified correct function of App on iPhone 6 despite, in a few cases AppStore showing screenshots for older phones. iPhones with screens smaller than 4.7" do not have the internal barometer chip. iTunes staff is working on fix to store issue. 1.0.7 09/15/2016 New Convenience Features: Enter Field Elevation directly to estimate Altimeter Setting Use internal GPS to estimate current elevation and Altimeter Setting Fixed a layout bug in iPad version Code optimization: faster and smaller memory footprint 1.0.6 09/02/2016 Now supports iPads with Barometer hardware: iPad Mini 4, iPad Air 2, and the iPad Pro series in addition to the iPhone 6, iPhone 6s and their plus sizes! Numerous tweaks to the code Enhanced User Interface 1.0.5 07/29/2016 • Separated the Metric Preference into input and output so you may now enter Altimeter Setting in millibars and display Altitude and Density Altitude in feet. • Bug fix in pressure picker • Enhanced Help page 1.0.4 07/01/2016 1.0.3 06/08/2016

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Previous Versions

Here you can find the changelog of avAltimeter since it was posted on our website on 2021-12-17 13:31:51. The latest version is 1.25 and it was updated on 2026-06-27 23:50:40. See below the changes in each version.

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