Winter OPS

Winter OPS

Smart Holdover Times & SNOWTAM

0 ratings
2 reviews
Free
In-App Purchases

Details

  • Released
  • Updated
  • January 10, 2012
  • September 15, 2026
Winter OPS screenshot #1 for iPhone
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Winter OPS screenshot #9 for iPhone
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About

This application assists with de-icing and anti-icing procedures by providing holdover time calculations based on official guidelines. It also decodes SNOWTAMs and offers customizable alerts for approaching expiry times, aiding aviation operations in winter conditions.

✓Holdover Time (HOT) calculations
✓SNOWTAM decoding
✓Customizable expiry time alerts
✓Qualified fluid information
✓Weather definitions
✓Dark mode support
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What's New in Winter OPS

5.0.1

September 15, 2026

Walkthroughs - Four guided tours now show how the app is used: - Holdover Times — setting the conditions and reading the time - Application Guidelines — reading the guidelines for a procedure and a temperature - SNOWTAM Decoder — entering and reading the reports for several runways - Snow Visibility — snowfall intensity from visibility Each runs on its own example and changes nothing you have set. They are in Settings → Help and can be repeated at any time. Snowfall rate The Holdover page now explains the precipitation rate behind the selected intensity — tap Rate above the arrows. When the outside air temperature is below the selected fluid's lowest operational use temperature, the readout now names that limit rather than only stating that no holdover time exists. DSHOT values SAE Type II, ABC-K PLUS and FCY-2 now correctly show the light/moderate precipitation intensity. Settings - Several settings now say what they decide, and the pages they sit on are easier to work through. Design improvements and minor bug fixes throughout.

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Subscriptions & In-App Purchases

1 year generic Fluids (FAA)

1 year subscription for generic Fluids (FAA)

$7.491 Year
14 Days trial
How to cancel Winter OPS subscription ⁉️

User reviews

Decoder format is not what’s advertised.

If you’re looking for a decoder that is in the same format as the preview then DON’T buy this app.

Response from developer

Apologies for your bad experience with our app. The shown SNOWTAM format is the old/previous regulation and is not used anymore. Our Application has changed to the new Global Reporting Format. We will check, why the old screenshots are still showing and correct them. The App-Details however state the correct Format (SNOWTAM GRF).

Useless

The holdover times are fluid specific. Therefore without the ability to specify the type of fluid by name, the times are completely meaningless and potentially very dangerous. Do NOT use this app. Look the data up in the published holdover times for the specific fluid used.
Deleted the app as dangerous. Shame I can't get my money back.
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Developer apps

FAQ

What is Winter OPS used for?

Winter OPS is an application designed to assist with de-icing and anti-icing procedures in aviation. It provides holdover time calculations based on FAA, EASA, and Transport Canada guidelines, and can also decode SNOWTAMs.

What data sources does Winter OPS use for holdover times?

The application's holdover time data is based on the FAA, EASA, and Transport Canada Holdover Time Guidelines for Winter 2025-2026. This ensures accuracy and compliance with current aviation regulations.

Can Winter OPS alert me when holdover times are about to expire?

Yes, Winter OPS allows you to set alarms to warn you about the approaching expiry of the Holdover Time (HOT). You can configure individual notification settings for warning levels.

What subscription plans are available for Winter OPS?

Winter OPS offers various yearly subscription plans, including options for generic fluids (EASA, TC, FAA) at $7.49/year with a 14-day free trial, and plans for all fluids (FAA, TC) at $12.49/year.

Does Winter OPS support different temperature units?

Yes, Winter OPS supports temperature settings in both Celsius (°C) and Fahrenheit (°F), with options to adjust using a slider or buttons.

Is Winter OPS available on multiple devices?

Winter OPS is available for iPhone and iPad, supporting both orientations on iPad and portrait mode on iPhone. It is also compatible with iPod.

How often is Winter OPS updated?

The application was last updated on October 1, 2025, with version 4.6.1. Updates are released to incorporate new features and rectify any reported mistakes.

Does Winter OPS have ads?

No, Winter OPS does not contain advertisements. The application is free to download and offers in-app purchases for subscription plans.