HOTmate

Holdover time calculator

Only for iPhone

Free · Designed for iPhone. Not verified for macOS.

iPhone

Winter season 2026-2027 HOTmate is a lightweight holdover time (HOT) calculator designed for quick use during winter operations. It provides a clean, pilot-friendly workflow: select the aerodrome, enter basic weather and temperature inputs, and get a clear HOT result with the relevant condition and intensity classification. Key features include: Fast, simple inputs with an interface optimized for mobile use. Offline operation — no account, no network required. Built-in precipitation/intensity logic to help interpret common winter weather scenarios. Clear, readable results with an emphasis on speed and usability. Dark mode for comfortable use in low-light environments. HOTmate is built for rapid cross-checking and situational awareness, with a focus on reliability and a minimal, distraction-free design.

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• Redesigned from the ground up for a smoother, more intuitive experience. • Updated deicing fluid data and holdover time tables for the 2026–2027 winter season. • Added fluid-specific Lowest Operational Use Temperature (LOUT) limit checks. • Improved session timer with accurate time zone handling and UTC/LT display options. • Improved fluid and concentration selection for faster input. • Clearer validation messages and error highlighting. • Performance improvements and bug fixes.

The developer, Viacheslav Novikov, 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
    Viacheslav Novikov
    Size
    4.5 MB
    Category
    Utilities
    Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    • Mac
      Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    English
    Age Rating
    4+
    Copyright
    © 2026 Viacheslav Novikov