# ColdWX

> ColdWX (iPhone/iPad app by Martin Groesbeek.)

- Source: https://appshunter.io/ios/app/coldwx/id1397176743 (this page in markdown: same URL + `.md`)
- Developer: [Martin Groesbeek](https://appshunter.io/developer/455651052)
- Category: Utilities, Navigation
- Price: $2.99
- Age rating: 4+
- Requires: iOS 12.0 · 32 MB
- Languages: American English
- Released: 2018-09-21
- Data updated: 2026-05-17
- User reviews in markdown: https://appshunter.io/ios/app/coldwx/id1397176743/reviews.md

## What is ColdWX?

ColdWX is a simple and easy Cold Weather correction tool for barometric based Instrument approaches. 
With an airport elevation and airport temperature as minimum input, the application will calculate a temperature corrected approach path displayed as a simple table.

Progam Features:
- Custom DME Start range
- DME Range slider with corrected altitudes based on 1/10th of a Nm.
- Differentiate between GPS/DME Approach
- DME Offset
- Day/Night Mode
- Copy correction table to clipboard 

Optional:
Pre-filled airport data-set. If supplied, the following fields will be pre-filled:

- Runway Threshold elevation
- OAT (retrieved from the last download METAR, this may be out of date)
- Glide Path Angle
- MSA
- GPS or DME Based approach and corrected DME Offset if
applicable
- DME Start Distance

(please contact me for more information http://www.bluebits.nl/?page_id=124)


## Version history (last 5 releases)

### 2.01 — 2022-10-27

- Added Platform Altitude as (corrected) reference
- Fixed possible issue with Paste of clipboard data in Lido
- Added GRF decoder
- Manual Dark/Light mode is removed, the app will now follow the Device  
- Fixed an error in calculation of apparent glide path 
- Minor UI fixes

### 1.94 — 2021-09-30

- Hold over tables

### 1.93 — 2021-01-28

- Minor bug fixes

### 1.92 — 2020-11-23

- Minor UI Changes
- Added (Magnetic) Crosswind calculator

### 1.91 — 2020-10-14

- Minor bugfixes

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## More apps by Martin Groesbeek

- [fuelTool](https://appshunter.io/ios/app/fueltool/id455651049)
- [Flight Timer](https://appshunter.io/ios/app/flight-timer/id550411354)
- [ETOPS](https://appshunter.io/ios/app/etops/id990563379)
- [ETOPS Lite](https://appshunter.io/ios/app/etops-lite/id1056097632)
- [Yahtv](https://appshunter.io/ios/app/yahtv/id1131291508)
- [skyVario](https://appshunter.io/ios/app/skyvario/id1150898776)

All apps by Martin Groesbeek: https://appshunter.io/developer/455651052

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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 2026-05-17.*