# Wind Vectoriser vs PD Altitude

The clearest difference is in-app purchases: Wind Vectoriser at none against PD Altitude's 1. Wind Vectoriser also leads on iOS requirement (12.0 vs 16.0). PD Altitude's advantage is update cadence (every 4 weeks vs every 20 months). On price, ads and device support there is nothing between them.

Both are free to download. PD Altitude sells 1 one-off in-app purchase. Wind Vectoriser asks for nothing beyond the download.

Wind Vectoriser ships an update every 20 months, PD Altitude every 4 weeks. The most recent releases landed on June 11, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Wind Vectoriser | PD Altitude |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/wind-vectoriser/id955071429/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 20 months | **Every 4 weeks** |
| Monetization | Free | — |
| Size | 8 MB | 22 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Hillworth Solutions Pty Ltd](https://appshunter.io/developer/1635910534) | [PITCHLINKS LIMITED](https://appshunter.io/developer/1593816127) |

## What reviewers say

### Wind Vectoriser

[App page](https://appshunter.io/ios/app/wind-vectoriser/id955071429)

This utility app calculates the average of wind values at various altitudes. Users can choose between vector sum or vector integral averaging methods for their calculations.

**Highlights:** Calculates average wind values, Supports different heights, Vector sum averaging, Vector integral averaging, User-selectable calculation methods

**Features:** macOS Compatibility

**In-app purchases:** none


### PD Altitude

[App page](https://appshunter.io/ios/app/pd-altitude/id1664694408)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| My Location | $1.99 | one-time |


## Frequently asked questions

### Is Wind Vectoriser free?

Wind Vectoriser is free to download, with no in-app purchases.

### Is PD Altitude free?

PD Altitude is free to download, with in-app purchases available.

### Do Wind Vectoriser or PD Altitude have ads?

Neither Wind Vectoriser nor PD Altitude shows ads.

### Which is updated more often, Wind Vectoriser or PD Altitude?

Wind Vectoriser ships an update every 20 months, and PD Altitude every 4 weeks. Most recently, Wind Vectoriser was updated on June 11, 2026 and PD Altitude on September 23, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*