# Wind Diagnostics vs WindPower

The clearest difference is in-app purchases: Wind Diagnostics at none against WindPower's 1. Wind Diagnostics also leads on iOS requirement (9.0 vs 18). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. WindPower sells 1 in-app purchase, starting at $2.99 per month. Wind Diagnostics asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 5 months. The most recent releases landed on October 6, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Wind Diagnostics | WindPower |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | Every 5 months |
| Monetization | — | Subscription |
| Size | 87 MB | 118 MB |
| Requires iOS | **9.0** | 18 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Siemens Energy](https://appshunter.io/developer/1539380213) | [rainbow-learning-software](https://appshunter.io/developer/1784094642) |

## What reviewers say

### Wind Diagnostics

[App page](https://appshunter.io/ios/app/wind-diagnostics/id986823931)

**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 Diagnostics free?

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

### Is WindPower free?

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

### Do Wind Diagnostics or WindPower have ads?

Neither Wind Diagnostics nor WindPower shows ads.

### Which is updated more often, Wind Diagnostics or WindPower?

Wind Diagnostics ships an update every 5 months, and WindPower every 5 months. Most recently, Wind Diagnostics was updated on October 6, 2026 and WindPower on September 25, 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.*