# Wind Power Calculator vs Mini EMS

The clearest difference is price: Mini EMS at Free against Wind Power Calculator's $2.99. Mini EMS also leads on update cadence (every 3 weeks vs every 29 months). On rating, ratings volume, ads and in-app purchases there is nothing between them.

Mini EMS 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.

On the App Store both sit at effectively the same score — 5.0 for Wind Power Calculator against 5.0 for Mini EMS. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Wind Power Calculator ships an update every 29 months, Mini EMS every 3 weeks. The most recent releases landed on September 15, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Wind Power Calculator | Mini EMS |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/wind-power-calculator/id907350151/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/mini-ems/id6448044595/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 29 months | **Every 3 weeks** |
| Monetization | Paid | **Free** |
| Size | 1 MB | 37 MB |
| Requires iOS | 13 | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Nitrio](https://appshunter.io/developer/321121189) | [英 张](https://appshunter.io/developer/1682824182) |

## 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


### Mini EMS

[App page](https://appshunter.io/ios/app/mini-ems/id6448044595)

Monitor and manage your photovoltaic inverter system remotely. Configure Wi-Fi connections, view power station performance, and access equipment details. Receive real-time alerts and perform remote operations for optimal system management.

**Highlights:** WIFI configuration for PV inverters, Login and power station list display, View equipment running status and generation, Power station and equipment information overview, Equipment operation flow chart, Daily power plant record with error/warning info, Remote settings and operations

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Wind Power Calculator free?

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

### Is Mini EMS free?

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

### Which has better reviews, Wind Power Calculator or Mini EMS?

Wind Power Calculator and Mini EMS are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Wind Power Calculator or Mini EMS have ads?

Neither Wind Power Calculator nor Mini EMS shows ads.

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

Wind Power Calculator ships an update every 29 months, and Mini EMS every 3 weeks. Most recently, Wind Power Calculator was updated on September 15, 2026 and Mini EMS on September 14, 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.*