# IWA  Smart Building System vs Arcosense

The clearest difference is update cadence: Arcosense at every 3 months against IWA  Smart Building System's every 24 months. IWA  Smart Building System's advantage is iOS requirement (15.6 vs 17.0). 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.

IWA  Smart Building System ships an update every 24 months, Arcosense every 3 months. Both last shipped on October 25, 2026.

## The numbers

| Metric | IWA  Smart Building System | Arcosense |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 24 months | **Every 3 months** |
| Size | 63 MB | 12 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Chicony power Technology Co.,Ltd.](https://appshunter.io/developer/1186590918) | [General Luminaire](https://appshunter.io/developer/1641438681) |

## What reviewers say

### IWA  Smart Building System

[App page](https://appshunter.io/ios/app/iwa-smart-building-system/id1517579948)

**Features:** macOS Compatibility

**In-app purchases:** none


### Arcosense

[App page](https://appshunter.io/ios/app/arcosense/id6547836608)

**In-app purchases:** none


## Frequently asked questions

### Is IWA  Smart Building System free?

IWA  Smart Building System is free to download, with no in-app purchases.

### Is Arcosense free?

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

### Do IWA  Smart Building System or Arcosense have ads?

Neither IWA  Smart Building System nor Arcosense shows ads.

### Which is updated more often, IWA  Smart Building System or Arcosense?

IWA  Smart Building System ships an update every 24 months, and Arcosense every 3 months. Most recently, IWA  Smart Building System was updated on October 25, 2026 and Arcosense on October 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.*