# Wind Power Calculator vs WindPower

The clearest difference is price: WindPower at Free against Wind Power Calculator's $2.99. WindPower also leads on update cadence (every 4 months vs every 29 months). Wind Power Calculator's advantage is in-app purchases (none vs 1) and iOS requirement (13 vs 18). On ads and device support there is nothing between them.

WindPower is free to download; Wind Power Calculator costs $2.99 up front. WindPower sells 1 in-app purchase, starting at $2.99 per month. Wind Power Calculator asks for nothing beyond the download.

Wind Power Calculator ships an update every 29 months, WindPower every 4 months. The most recent releases landed on September 15, 2026 and June 8, 2026 respectively.

## The numbers

| Metric | Wind Power Calculator | WindPower |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/wind-power-calculator/id907350151/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 29 months | **Every 4 months** |
| Monetization | **Paid** | Subscription |
| Size | 1 MB | 8 MB |
| Requires iOS | **13** | 18 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Nitrio](https://appshunter.io/developer/321121189) | [Christian Schlee](https://appshunter.io/developer/1784094642) |

## 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


### WindPower

[App page](https://appshunter.io/ios/app/windpower-app/id6739182378)

This app provides technicians and professionals in the wind energy sector with direct oversight of wind turbines in Germany. It offers tools for searching turbines, detailed weather forecasts, documentation, and safety checks to simplify daily work.

**Highlights:** Search 37,000+ wind turbines, 14-day weather forecast per turbine, Favorites and search history, Photo documentation and safety checks, Last Minute Risk Analyses (LMRA), Nm converter, Nearby points of interest

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full access | $2.99 | per month |


## Frequently asked questions

### Is Wind Power Calculator free?

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

### Is WindPower free?

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

### Do Wind Power Calculator or WindPower have ads?

Neither Wind Power Calculator nor WindPower shows ads.

### Which is updated more often, Wind Power Calculator or WindPower?

Wind Power Calculator ships an update every 29 months, and WindPower every 4 months. Most recently, Wind Power Calculator was updated on September 15, 2026 and WindPower on June 8, 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.*