# N4 Building Concierge vs Modbus Explorer

The clearest difference is in-app purchases: N4 Building Concierge at none against Modbus Explorer's 1. N4 Building Concierge also leads on iOS requirement (12.0 vs 16.0). On price there is nothing between them.

Both are free to download. Modbus Explorer sells 1 one-off in-app purchase. N4 Building Concierge asks for nothing beyond the download.

## The numbers

| Metric | N4 Building Concierge | Modbus Explorer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | — | Every 2 weeks |
| Size | 38 MB | 5 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | — | **iPhone** |
| Age rating | 17+ | 4+ |
| Developer | [TopLife Concierge](https://appshunter.io/developer/1486786834) | [HASAN BARAN](https://appshunter.io/developer/6773067753) |

## What reviewers say

### N4 Building Concierge

[App page](https://appshunter.io/ios/app/n4-building-concierge/id1628815663)

**In-app purchases:** none


### Modbus Explorer

[App page](https://appshunter.io/ios/app/modbus-explorer/id6778095956)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Modbus Explorer Pro | $14.99 | one-time |


## Frequently asked questions

### Is N4 Building Concierge free?

N4 Building Concierge is free to download, with no in-app purchases.

### Is Modbus Explorer free?

Modbus Explorer is free to download, with in-app purchases available.

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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.*