# WindCalc vs True Wind Pro

The clearest difference is in-app purchases: WindCalc at none against True Wind Pro's 1. WindCalc also leads on iOS requirement (12.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. True Wind Pro sells 1 one-off in-app purchase. WindCalc asks for nothing beyond the download.

## The numbers

| Metric | WindCalc | True Wind Pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 2 weeks |
| Size | 49 MB | 59 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Starpath Corp](https://appshunter.io/developer/1345556660) | [Paulina Praciak](https://appshunter.io/developer/1869727950) |

## What reviewers say

### WindCalc

[App page](https://appshunter.io/ios/app/windcalc/id6455129265)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### True Wind Pro

[App page](https://appshunter.io/ios/app/true-wind-pro-wind-calculator/id6758668604)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Calculations | $1.99 | one-time |


## Frequently asked questions

### Is WindCalc free?

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

### Is True Wind Pro free?

True Wind Pro is free to download, with in-app purchases available.

### Do WindCalc or True Wind Pro have ads?

Neither WindCalc nor True Wind Pro shows ads.

---

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