© 2018 Raymond Chase, All rights reserved

AltitudeAlert, the groundbreaking altitude alerting app for the iPad takes it to the next level with V2. V2 harnesses the power of the iPads barometric sensor (see hardware requirements below), delivering incredibly precise altitude data.

V2 is like having a virtual copilot with you in the cockpit.

Never miss an altitude assignment again. Set the altitude and V2 alerts you prior to reaching it and when you acquire it.

Need to shoot an approach? No problem! Set the minimums and V2 will alert you 100' above minimums and again at minimums.**

**Barometric sensor required (see SYSTEM REQUIREMENTS below).


• Run's along side or in the background while using your favorite EFB App, i.e. Foreflight, Garmin Pilot, FlyQEFB, etc.

• Alerting for supplemental oxygen use for both pilot and passengers.

• Instrument Approach Minimums Alerting.**

• Automatic ground reference alerting at 1000' and 500' above touchdown.

**Barometric sensor required (see SYSTEM REQUIREMENTS below).

For iPads WITHOUT a barometric sensor. V2 uses GPS Altitude based alerting. AltitudeAlert uses a special algorithm to correct for the GPS altitude error.



All iPads need to have Wifi + Cellular (Wifi ONLY requires an EXTERNAL GPS connected to the iPad such as Bad Elf Pro or Stratus 1S and 2S).

Minimum hardware requirements for GPS based alerting (iPads that do NOT have the barometric sensor):

• iPad Mini 2 or newer
​​• iPad Air or newer 
• iPad Pro or newer

To use the barometric features of the app (iPads that DO have the barometric sensor):

• iPad Mini 4 or newer
• iPad Air 2 or newer
• iPad Pro (any size) or newer

*** PLEASE NOTE, AltitudeAlert for iPad V2 and AltitudeAlert for iPhone are sold SEPARATELY *** 


• iPhone 5S, SE, 6, 6+, 7, 7+, 8, 8+, iPhone X

*** AltitudeAlert for iPhone does NOT support BAROMETRIC FEATURES yet.  Work is underway, stay tuned.

Both apps are intended for use in aircraft without a panel mounted altitude preselector. If you have a panel mounted altitude preselector, this App may be duplicating functionality you already have.

Barometric pressure sensing features will NOT work correctly in PRESSURIZED aircraft. In this case, use GPS based alerting.




• ALT Setting Switch to toggle local altimeter in either In Hg or hPa.
• Under the hood optimizations & Bug Fixes.


• Land Mode Optimization.
• Bug Fixes​.


• Initial Launch.

iPad V2


• Initial Launch



• More under the hood optimizations
• Fixed a bug that inhibited the PAX OXY Alert from illuminating above 14000' after making an adjustment
• Added an alert to notify you when the Reference Altitude Alerting System has been stopped due to inactivity when the aircraft is not moving for 30 min.
• Fixed the version label from being displayed in the Slide In mode


• Bug Fixes and Optimizations.


• New Alert Parameter Settings!  Now you can control at what altitude AltitudeAlert generates its alerts.
• Enhanced Alert Testing for testing your iPad and headset prior to flight.
• Bug fixes and improvements.


​• ALT Setting Switch to toggle local altimeter in either In Hg or hPa
• Under the hood optimizations


 Corrected a display bug when the User Interface was "Swiped In"


• Altitude Quick Sync.

•  Corrected a bug uncovered that inhibited the iPad GPS from being activated in iOS 11.
•  Small UI fix when using AltitudeAlert in landscape mode while the in "Slide in" with another App.
​•  Introducing the new and improved LANDING MODE monitoring!
• This safety feature has only been available to pilots with more sophisticated GPWS or EGPWS systems.
​• When the Landing Mode is selected manually (or automatically), AltitudeAlert will generate a 1000' and 500' alert.
​• For pilots of retractable gear aircraft, "Check Landing Gear Down" is added to the 500' alert (see the User Guide in the HOW TO section).​


• iOS 11 Compatibility.


• Under the hood optimizations and squashed bugs.

• Updated to work with iOS 10 and take advantage of iOS 10's new enhanced Notifications!
• Redesigned User Interface.
• "Touch Zones" with popup numeric entry pads added for manual adjustments.
• Added a Test Audio button to set audio alert levels prior to takeoff.

Control your "Altitude"!