Not updated
They didn’t update the hold over time charts for two years, therefore the app is useless at the moment. It used to be great when it was working.
Archived App (Last seen on 16 May 2026)
This is an archived listing of the app previously available on the App Store.Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.
About
This tool helps airline pilots calculate de-icing holdover times using user-generated inputs for weather and fluids. It provides digital guidelines, a user-friendly timer with alerts, and supports FAA and Transport Canada regulations. The app can also work offline.
✓Deicing holdover time calculator
✓Digital HOT guidelines (PDF)
✓User-friendly timer with alerts
✓Supports FAA and Transport Canada
✓Offline functionality
✓Flaps up/down data input
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What's New in Deicing Holdover
4.1.18
September 3, 2023
- Updated holdover times data for the 2023-2024 season - Bugfixes
User reviews
FAQ
What is Deicing Holdover?
Deicing Holdover is a winter operations productivity tool for airline pilots. It calculates de-icing holdover times based on user-generated inputs for weather and fluid types, supporting both FAA and Transport Canada regulations.
How does Deicing Holdover calculate holdover times?
The app uses a user-friendly interface to input all relevant data that impacts holdover time, such as weather conditions and deicing fluid. As inputs are entered, corresponding fields update automatically for accurate and easy calculation.
Does Deicing Holdover have a timer?
Yes, Deicing Holdover includes a built-in timer based on the calculated holdover time. It will alert the user when the minimum and maximum holdover times expire, helping pilots manage their operations effectively.
Can Deicing Holdover be used offline?
Yes, Deicing Holdover has the ability to work offline. This is a crucial feature for pilots who may not always have reliable internet access during flight operations.
What regulatory agencies does Deicing Holdover support?
Deicing Holdover allows users to select the regulatory agency for which they require holdover times. It currently supports calculations for both the FAA (Federal Aviation Administration) and Transport Canada.
Does Deicing Holdover have ads?
Yes, Deicing Holdover contains advertisements. As a free utility app, it is supported by ads to provide its features to users.
What devices is Deicing Holdover available on?
Deicing Holdover is available on iPhone, iPad, and iPod devices. It is designed to be compatible with Apple's mobile ecosystem.
How often is Deicing Holdover updated?
The latest version of Deicing Holdover is 4.1.18, which was last updated on September 3, 2023. This indicates a relatively active development cycle for the application.