HOTs 2025-26

APS Holdover Times Calculator

$24.99 · Designed for iPad

This app contains the 2025-26 aircraft ground de/anti-icing fluid holdover times (HOTs) and related guidance as published by Transport Canada (TC) and the Federal Aviation Administration (FAA). Key Features: • Dual Functionality: Calculate HOTs using user-input weather/fluid data or browse official HOT PDFs directly in-app. • HOT Clock: Tracks time since fluid application with a visual timer and alerts at lower (optional) and upper HOT limits. • DSHOTs: Includes degree-specific HOTs for Snow, Snow + Ice Crystals, and Snow + Freezing Fog for Type II, III, and IV fluids. • Real-Time Weather: Automatically integrates METAR weather data into the HOT calculator. • Custom Settings: Set authority, HOT table type (standard/adjusted), alerts, time zone, DSHOTs, METAR integration, and light/dark mode. • Event Log: Logs each HOT Clock event with full details. Export or delete logs from the More tab; all data is stored locally. Developed by APS Aviation Inc., the company responsible for developing and managing the holdover time table data on behalf of TC and the FAA for the last two decades. Privacy Policy: https://rheacanada.ca/aps-holdover-times-app-privacy-policy/ Terms of Use: https://rheacanada.ca/aps-holdover-times-app-terms-of-use/

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App updated for compatibility with iOS 26.

The developer, APS Aviation Inc., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    The developer has not yet indicated which accessibility features this app supports. Learn More

    • Seller
      • APS Aviation Inc.
    • Size
      • 168 MB
    • Category
      • Utilities
    • Compatibility
      Requires iOS 15.5 or later.
      • iPhone
        Requires iOS 15.5 or later.
      • iPad
        Requires iPadOS 15.5 or later.
      • iPod touch
        Requires iOS 15.5 or later.
      • Mac
        Requires macOS 12.4 or later and a Mac with Apple M1 chip or later.
    • Languages
      • English
    • Age Rating
      4+
    • Copyright
      • © 2025 APS Aviation Inc.