# PD Altitude vs Crosswind Calculator

The clearest difference is ads: PD Altitude at none against Crosswind Calculator's shown. PD Altitude also leads on iOS requirement (16.0 vs 18.0). Crosswind Calculator's advantage is update cadence (weekly vs every 4 weeks). On price, in-app purchases and device support there is nothing between them.

Both are free to download. PD Altitude sells 1 one-off in-app purchase and Crosswind Calculator sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

PD Altitude ships an update every 4 weeks, Crosswind Calculator weekly. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | PD Altitude | Crosswind Calculator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 weeks | **Weekly** |
| Size | 22 MB | 31 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 17+ | 4+ |
| Developer | [PITCHLINKS LIMITED](https://appshunter.io/developer/1593816127) | [Liam Robertson](https://appshunter.io/developer/1896319368) |

## What reviewers say

### 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 |


### Crosswind Calculator

[App page](https://appshunter.io/ios/app/crosswind-calculator/id6766731330)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.49 | one-time |


## Frequently asked questions

### Is PD Altitude free?

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

### Is Crosswind Calculator free?

Crosswind Calculator is free to download, with in-app purchases available.

### Do PD Altitude or Crosswind Calculator have ads?

Crosswind Calculator shows ads; PD Altitude does not.

### Which is updated more often, PD Altitude or Crosswind Calculator?

PD Altitude ships an update every 4 weeks, and Crosswind Calculator weekly. Most recently, PD Altitude was updated on October 27, 2026 and Crosswind Calculator on October 25, 2026.

---

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