# Hold Calculator Pro — Entries and wind corrections

> Aviation holding pattern calculation and wind correction tool for pilots. (iPhone/iPad app by Rob Barltrop.)

- Source: https://appshunter.io/ios/app/hold-calculator-pro/id1515458700 (this page in markdown: same URL + `.md`)
- Developer: [Rob Barltrop](https://appshunter.io/developer/1513961240)
- Category: Navigation, Travel
- Price: $1.99
- Rating: 3.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.4 · 1 MB
- Languages: American English
- Released: 2020-05-27
- Data updated: 2026-09-09
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/hold-calculator-pro/id1515458700/reviews.md

## What is Hold Calculator Pro?

Master the 'dark art' of flying that timed holding pattern.  Written by experienced instrument pilots and instructors Hold Calculator Pro will take the hard work out of the calculations.

For the instrument student the hold can be extremely daunting - our visual output allows quick and simple understanding of the joining processes, calculation of Wind Correction Angle and recommended headings to fly in and outbound.

Device GPS is can be used to calculate inflight instant wind to use when planning your hold.

## Key features

- Timed holding pattern mastery
- Wind correction angle calculation
- Recommended headings
- Visual joining process understanding
- In-flight instant wind calculation via GPS

## Chart rankings

- #98 in Top Paid · Navigation (US App Store)

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/hold-calculator-pro/id1515458700/reviews.md

### 5/5 — Takes the mystery out of holds

*2020-06-02*

For those of us who don’t have fancy avionics to fly the hold for us...A great easy to use app that makes working them out easy. The drift calc for outbound and inbound legs helps to fly a more accurate hold.

## Frequently asked questions about Hold Calculator Pro

### What is Hold Calculator Pro?

Hold Calculator Pro is a mobile application designed to simplify the complex calculations involved in aviation holding patterns. It assists instrument students and pilots with wind correction angles and recommended headings.

### How much does Hold Calculator Pro cost?

Hold Calculator Pro is a paid application, available for a one-time purchase price of $1.99.

### What devices does Hold Calculator Pro support?

Hold Calculator Pro is supported on iPhone and iPod devices. It is not currently available for Android or other platforms.

### Is Hold Calculator Pro suitable for beginners?

Yes, Hold Calculator Pro is specifically designed to help instrument students understand the 'dark art' of flying holding patterns. Its visual output aids in quick and simple understanding of joining processes.

### Does Hold Calculator Pro use GPS?

Yes, Hold Calculator Pro can utilize your device's GPS to calculate in-flight instant wind, which can then be used when planning your hold.

### How often is Hold Calculator Pro updated?

The latest version of Hold Calculator Pro is 1.2.1, last updated on June 14, 2020. The app was initially released on May 27, 2020.

### What is the age rating for Hold Calculator Pro?

Hold Calculator Pro has an age rating of 4+, making it suitable for a wide range of users.

### Does Hold Calculator Pro have ads?

No, Hold Calculator Pro does not contain advertisements. As a paid application, it offers an ad-free experience.

## Version history (last 5 releases)

### 1.2.1 — 2020-06-14

- In flight instant wind calculation using device GPS and compass data.
- Added a caution when strong outbound tailwinds make timing rules of thumb unreliable.
- Minor bug fixes and improvements.

### 1.2 — 2020-06-13

- In flight instant wind calculation using device GPS and compass data.
- Added a caution when strong outbound tailwinds make timing rules of thumb unreliable.
- Minor bug fixes and improvements.

### 1.1.3 — 2020-06-02

- Fixed icon presentation on iPad

v1.1.2
- Rotate gesture support for dynamic adjustment of wind direction.
- Dark mode appearance improved.
- Minor bug fixes and improvements.

### 1.1.2 — 2020-06-01

Rotate gesture support for dynamic adjustment of wind direction.
Dark mode appearance improved.
Minor bug fixes and improvements.

### 1.1 — 2020-05-27

No release notes.

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## More apps by Rob Barltrop

- [Crosswind Calculator Pro](https://appshunter.io/ios/app/crosswind-calculator-pro/id1513961241)
- [G - Meter](https://appshunter.io/ios/app/g-meter/id1516294953)

All apps by Rob Barltrop: https://appshunter.io/developer/1513961240

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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 2026-09-09.*