# Windmill Pro vs Smart Gauges

The clearest difference is update cadence: Smart Gauges at every 2 days against Windmill Pro's every 12 months. Windmill Pro's advantage is iOS requirement (9.3 vs 12.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Windmill Pro ships an update every 12 months, Smart Gauges every 2 days. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Windmill Pro | Smart Gauges |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (2 ratings)](https://appshunter.io/ios/app/windmill-pro/id1309388375/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 2 days** |
| Monetization | Free | — |
| Size | 12 MB | 23 MB |
| Requires iOS | **9.3** | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [DIGISINE ENERGYTECH CO.,LTD.](https://appshunter.io/developer/1541781655) | [冉 陶](https://appshunter.io/developer/1762542829) |

## What reviewers say

### Windmill Pro

[App page](https://appshunter.io/ios/app/windmill-pro/id1309388375)

Monitor your Automaxx Windmill wind turbines directly from your smartphone. Track operational data and status via Bluetooth, including voltage, charge levels, and generation metrics.

**Highlights:** Monitor wind turbine operation, Track functional data, View operating status, Bluetooth connectivity, Generating Voltage, Battery Charge Level Indicator, Brake/Unbrake control

**In-app purchases:** none


### Smart Gauges

[App page](https://appshunter.io/ios/app/smart-gauges/id6654921138)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Windmill Pro free?

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

### Is Smart Gauges free?

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

### Do Windmill Pro or Smart Gauges have ads?

Neither Windmill Pro nor Smart Gauges shows ads.

### Which is updated more often, Windmill Pro or Smart Gauges?

Windmill Pro ships an update every 12 months, and Smart Gauges every 2 days. Most recently, Windmill Pro was updated on November 2, 2026 and Smart Gauges on November 4, 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.*