# Smart Sensor 4.0 vs Wind

The clearest difference is update cadence: Smart Sensor 4.0 at every 3 months against Wind's every 8 months. Smart Sensor 4.0 also leads on iOS requirement (8.0 vs 13.0). 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.

Smart Sensor 4.0 ships an update every 3 months, Wind every 8 months. Both last shipped on October 10, 2026.

## The numbers

| Metric | Smart Sensor 4.0 | Wind |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/wind-shaft-alignment/id6741844422/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 8 months |
| Monetization | — | Free |
| Size | 77 MB | 129 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Infinite Uptime India Pvt Ltd](https://appshunter.io/developer/1511466684) | [ACOEM Group](https://appshunter.io/developer/1495816959) |

## What reviewers say

### Smart Sensor 4.0

[App page](https://appshunter.io/ios/app/smart-sensor-40/id1511517119)

**Features:** macOS Compatibility

**In-app purchases:** none


### Wind

[App page](https://appshunter.io/ios/app/wind-shaft-alignment/id6741844422)

This application assists with shaft alignment in wind turbines using a connected Bluetooth system. It guides users through measurement and alignment processes, offering features like custom templates and instant PDF reporting for efficient on-site documentation.

**Highlights:** Bluetooth connectivity, Guided measurement process, Customizable templates, VertiZontal adjustment, Instant PDF reporting, Wind turbine graphics

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Smart Sensor 4.0 free?

Smart Sensor 4.0 is free to download, with no in-app purchases.

### Is Wind free?

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

### Do Smart Sensor 4.0 or Wind have ads?

Neither Smart Sensor 4.0 nor Wind shows ads.

### Which is updated more often, Smart Sensor 4.0 or Wind?

Smart Sensor 4.0 ships an update every 3 months, and Wind every 8 months. Most recently, Smart Sensor 4.0 was updated on October 10, 2026 and Wind on October 10, 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.*