# M2go Sensor vs Windmill Pro

The clearest difference is update cadence: Windmill Pro at every 12 months against M2go Sensor's every 55 months. Windmill Pro also leads on iOS requirement (9.3 vs 15.6). 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.

M2go Sensor ships an update every 55 months, Windmill Pro every 12 months. The most recent releases landed on October 6, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | M2go Sensor | Windmill Pro |
| --- | --- | --- |
| 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 55 months | **Every 12 months** |
| Monetization | — | Free |
| Size | 2 MB | 12 MB |
| Requires iOS | 15.6 | **9.3** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [taskit](https://appshunter.io/developer/830597040) | [DIGISINE ENERGYTECH CO.,LTD.](https://appshunter.io/developer/1541781655) |

## What reviewers say

### M2go Sensor

[App page](https://appshunter.io/ios/app/m2go-sensor/id1166199314)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is M2go Sensor free?

M2go Sensor is free to download, with no in-app purchases.

### Is Windmill Pro free?

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

### Do M2go Sensor or Windmill Pro have ads?

Neither M2go Sensor nor Windmill Pro shows ads.

### Which is updated more often, M2go Sensor or Windmill Pro?

M2go Sensor ships an update every 55 months, and Windmill Pro every 12 months. Most recently, M2go Sensor was updated on October 6, 2026 and Windmill Pro on October 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.*