About
This app provides FAA and Transport Canada holdover time tables and a timer for aircraft de-icing. It automatically reads weather data, calculates precipitation, and highlights relevant tables for fluid selection and outside air temperature. The timer offers visual alerts and live activity updates, while aircraft records are saved for each de-icing event.
What's New in Holdover Pro
2026.15
October 23, 2026
Subscriptions & In-App Purchases
Season Pass
FAA & Transport Canada tables, lookup and timer
Developer apps
FAQ
What is Holdover Pro?
Holdover Pro is a reference aid for trained flight crews that provides FAA and Transport Canada holdover time tables and a holdover timer for aircraft de-icing. It integrates real-time weather data to assist in determining appropriate de-icing procedures.
Does Holdover Pro have ads?
The provided data does not indicate the presence of advertisements within Holdover Pro. Its monetization model is based on a subscription for the Season Pass.
How does Holdover Pro calculate holdover times?
Holdover Pro reads the newest METAR or D-ATIS, calculates precipitation and snowfall intensity, and then finds the relevant cell in the FAA or Transport Canada Holdover Time Guidelines based on your selected fluid, dilution, and outside air temperature.
What are the subscription details for Holdover Pro?
Holdover Pro requires a Season Pass, which is free for the first 7 days and then billed yearly at $19.99. This pass provides access to updated FAA and Transport Canada tables. The subscription renews automatically unless cancelled at least 24 hours before the end of the trial or current period.
Is Holdover Pro approved by aviation authorities?
No, Holdover Pro is a reference aid and is not approved by the FAA, Transport Canada, or any other authority. It does not authorize takeoff, and official guidelines and pre-takeoff checks always govern.
How often are the holdover tables updated in Holdover Pro?
The Season Pass provides access to new FAA and Transport Canada tables every August. The app also checks for revised tables and installs them after verification, warning users when the tables in use are out of date.
What devices is Holdover Pro available on?
Holdover Pro is available on iPad and iPhone devices. It features Live Activity on the Lock Screen and in the Dynamic Island, as well as Home Screen and Lock Screen widgets.
What is the age rating for Holdover Pro?
Holdover Pro has an age rating of 4+. This indicates it is suitable for a general audience and does not contain content typically considered inappropriate for children.