# Holdover Times Calculator — De-icing app

> De-icing app (iPhone/iPad app by Andrius Orlovas.)

- Source: https://appshunter.io/ios/app/holdover-times-calculator/id6753866251 (this page in markdown: same URL + `.md`)
- Developer: [Andrius Orlovas](https://appshunter.io/developer/1845098105)
- Category: Weather, Navigation
- Price: Free with in-app purchases (on sale, was $6.99)
- Age rating: 4+
- Requires: iOS 14.0 · 11 MB
- Languages: American English
- Released: 2025-11-05
- Data updated: 2026-05-16
- User reviews in markdown: https://appshunter.io/ios/app/holdover-times-calculator/id6753866251/reviews.md

## What is Holdover Times Calculator?

The holdover time (HOT) calculator provides estimated time that deicing/anti-icing fluid will prevent the formation of frost or ice and the accumulation of snow on the critical surfaces of an aircraft. It help flight crews make decisions.
Holdover Time begins at the start of the anti icing operation. If a two-step operation is used, then it begins at the start of the final (anti-icing) step. By definition therefore, holdover time will have effectively run out when frozen deposits start to form or accumulate on treated aircraft surfaces.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| HOT Calculator Premium | $4.99 | one-time |



## Version history (last 3 releases)

### 1.2 — 2025-12-05

Countdown timer function added.
Background notifications implemented.

### 1.1 — 2025-11-27

Paid app changed to in-app purchases.
Bug related to button "Database Up to Date" fixed.
Function "Forgot password?" added.
Apple receipt verification implemented.
Airport code validation added.

### 1.0 — 2025-11-05

No release notes.

## Related topics

[deicing holdover](https://appshunter.io/ios/topics/deicing-holdover)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-16.*