# Wind Power Calculator vs K

The clearest difference is price: K at Free against Wind Power Calculator's $2.99. K also leads on iOS requirement (11.0 vs 13). Wind Power Calculator's advantage is device support. On in-app purchases there is nothing between them.

K is free to download; Wind Power Calculator costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Wind Power Calculator | K |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/wind-power-calculator/id907350151/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Every 29 months | — |
| Monetization | Paid | — |
| Size | 1 MB | 33 MB |
| Requires iOS | 13 | **11.0** |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [Nitrio](https://appshunter.io/developer/321121189) | [Shenzhen Kstar Science & Technology Co., Ltd.](https://appshunter.io/developer/1460236605) |

## What reviewers say

### Wind Power Calculator

[App page](https://appshunter.io/ios/app/wind-power-calculator/id907350151)

Estimate the power output of a windmill using key factors like air density, windmill efficiency, cross-sectional area, and wind velocity. Understand how wind speed significantly impacts energy generation and calculate year-round energy production for informed decisions.

**Highlights:** Estimate available wind power, Calculate power based on key factors, Understand wind velocity impact, Calculate year-round energy generation, Unlock wind energy potential

**Features:** macOS Compatibility

**In-app purchases:** none


### K

[App page](https://appshunter.io/ios/app/k-spc/id6471654494)

**In-app purchases:** none


## Frequently asked questions

### Is Wind Power Calculator free?

Wind Power Calculator costs $2.99, with no in-app purchases.

### Is K free?

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

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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.*