This update includes an updated airport database and minor UI/UX refinements, with improved terminology for better operational clarity. Version 4 expands coolAltitude from a temperature correction calculator into a comprehensive cold-weather operations support tool for IFR pilots. New and improved features include: • Saved and reloadable approach presets for individual airports and procedures • Integrated METAR interaction with automatic propagation of relevant values • Full de-/anti-icing support based on FAA Holdover Time (HOT) Guidelines • Built-in HOT countdown timer to support situational awareness during ground operations • Structured storage and sharing of verified operational data • Improved workflow clarity and reduced data entry requirements This release focuses on accuracy, clarity, and usability during high-workload flight preparation.

This update includes a fix for sunrise and sunset calculations, along with minor user interface improvements. Version 4 expands coolAltitude from a temperature correction calculator into a comprehensive cold-weather operations support tool for IFR pilots. New and improved features include: • Saved and reloadable approach presets for individual airports and procedures • Integrated METAR interaction with automatic propagation of relevant values • Full de-/anti-icing support based on FAA Holdover Time (HOT) Guidelines • Built-in HOT countdown timer to support situational awareness during ground operations • Structured storage and sharing of verified operational data • Improved workflow clarity and reduced data entry requirements This release focuses on accuracy, clarity, and usability during high-workload flight preparation.

This update significantly expands coolAltitude from a temperature correction calculator into a comprehensive cold-weather operations support tool for IFR pilots. New and improved features include: • Saved and reloadable approach presets for individual airports and procedures • Integrated METAR interaction with automatic propagation of relevant values • Full de-/anti-icing support based on FAA Holdover Time (HOT) Guidelines • Built-in HOT countdown timer to support situational awareness during ground operations • Structured storage and sharing of verified operational data • Improved workflow clarity and reduced data entry requirements This release focuses on accuracy, clarity and usability during high-workload flight preparation.

This update significantly expands coolAltitude from a temperature correction calculator into a comprehensive cold-weather operations support tool for IFR pilots. New and improved features include: • Saved and reloadable approach presets for individual airports and procedures • Integrated METAR interaction with automatic propagation of relevant values • Full de-/anti-icing support based on FAA Holdover Time (HOT) Guidelines • Built-in HOT countdown timer to support situational awareness during ground operations • Structured storage and sharing of verified operational data • Improved workflow clarity and reduced data entry requirements This release focuses on accuracy, clarity and usability during high-workload flight preparation.

• Updated for iOS 26 • Minor UI and performance improvements

Improved readability and minor enhancements for a better user experience.

• Fixed an issue where the temperature display would reset to -5°C. • Optimised for iOS 18 for smoother performance.

coolAltitude has been completely reworked using the lates available technology. iPad versions now supports portrait and landscape orientations including split view over another app. Overall stability has been significantly improved. App now supports dark mode, which can be triggered regardless of the system settings to make night approaches more comfortable.

New features added: • RCAM table view • Different temperature correction calculation methods: o ICAO 8168 (current) o 10% | 20% of HAT (or QNH source) o 4% of HAT (or QNH source) on each 10°C of ISA DEV o Table values with linear interpolation • Option to use default rounding principles or to display precise values The look & feel was freshened and some bugs from previous version corrected.

IOS 13 compatibility.

iPhone X, XR, XS compatibility

Compatibility for IOS 11 Improved screen layout for different devices Added temperature corrections calculation up to +10°C Added support for higher temperatures (more than 22°C) – it calculates the “actual flown” descent path, which is higher than the selected one Added support for degrees of Fahrenheit

Modification of the height over the runway threshold used for profile calculation is enabled. Quick switch between profiles calculated to runway threshold and profiles calculated to runway touch down zone. This is useful feature for LOC/DME approaches as ILS DME is very often collocated with G/S antenna and thus reads zero at TDZ. Improved help guide

Compatibility for IOS 10

Minor improvements related to IOS 9

Improved formatting for long approaches. Now it can display readable results for approaches up to 22 nm long.

Now the coolAltitude is available on iPads and iPhones You can zoom in and out to different parts of the approach and corresponding values Fonts used for numbers are larger

coolAltitude can now calculate altitude corrections for MSA and Go Around altitudes.

SNOWTAM decoding from METAR information has been added. It can also now transform friction coefficients reported in SNOWTAM to braking actions based on ICAO scale and Normative/CIS scale respectively. coolAltitude can recommend possible BA based on runway contaminant reported in SNOWTAM combined with reported airport temperature. This feature is experimental and if used it must always be crosschecked with valid QRH/FCOM approved by the operator. The contaminant must be verified by ATIS. coolAltitude can be used in real operation if the operator did receive an approval from corresponding DGCA/CAA authority. coolAltitude must be in that case part of authorized software in operator’s EFB package.

IOS 7 compatibility

• Corrected recalculation bug when changing decision altitude • Improved and more precise input of values including rounding of entered values • Other minor changes