# FlightAltCheckLite

> FlightAltCheckLite (iPhone/iPad app by Stefano Rapisarda.)

- Source: https://appshunter.io/ios/app/flightaltchecklite/id1228215906 (this page in markdown: same URL + `.md`)
- Developer: [Stefano Rapisarda](https://appshunter.io/developer/1228213039)
- Category: Navigation, Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 10.1 · 23 MB
- Languages: American English
- Released: 2017-05-02
- Data updated: 2026-05-17
- User reviews in markdown: https://appshunter.io/ios/app/flightaltchecklite/id1228215906/reviews.md

## What is FlightAltCheckLite?

FlightAltCheck is an app created to help pilots understand and calculate cold temperature altitude corrections for barometric altimeters.
Most aviation authorities’ procedures and regulations require or recommend pilots to apply corrections to minimum instrument approach altitudes during periods of very cold weather conditions, or cold weather conditions in combination with terrain.
The standard reference for these corrections is the International Civil Aviation Organization (ICAO) document PANS OPS Doc 8168.
A correctly calibrated pressure altimeter indicates true altitude above mean sea level (MSL) only when operating within the International Standard Atmosphere (ISA) parameters of pressure and temperature. 
The non-standard pressure conditions are corrected by applying the correct local area altimeter setting (QNH), but temperature differences from ISA are not usually considered. 
The conditions that may endanger aviation safety occur when temperatures are colder than ISA, as true altitudes could be lower than indicated altitudes causing the risk of inadequate obstacle clearance.
FlightAltCheck can be used to determine altitude corrections using the three different formulas recommended by ICAO in PANS OPS Doc 8168.
The full version of FlightAltCheck allows saving an unlimited number of procedures.


## Version history (last 2 releases)

### 1.0.4 — 2017-05-22

This app has been updated by Apple to display the Apple Watch app icon.

Minor changes, new icons

### 1.0 — 2017-04-30

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-17.*