# SmartLink Control vs ReZa Pro for Zabbix

The clearest difference is in-app purchases: SmartLink Control at none against ReZa Pro for Zabbix's 2. SmartLink Control also leads on iOS requirement (9.0 vs 17.6). ReZa Pro for Zabbix's advantage is update cadence (fortnightly vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. ReZa Pro for Zabbix sells 2 in-app purchases, starting at $2.99 per month. SmartLink Control asks for nothing beyond the download.

SmartLink Control ships an update every 3 months, ReZa Pro for Zabbix fortnightly. The most recent releases landed on November 1, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | SmartLink Control | ReZa Pro for Zabbix |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 19 MB | 50 MB |
| Requires iOS | **9.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Holger Boelts](https://appshunter.io/developer/381063175) | [Rhein-Main Solutions GmbH](https://appshunter.io/developer/1620857390) |

## What reviewers say

### SmartLink Control

[App page](https://appshunter.io/ios/app/smartlink-control/id381063172)

This application provides mobile visualization for operating and displaying functions within a networked building automation environment. It connects to various common building systems and offers comfort functions like scene storage and presence simulation. It also supports media technology control via LAN, IR, or RS232.

**Highlights:** Control building automation systems, Visualize system functions, Connects to KNX, LON, Crestron, and more, Scene storage and presence simulation, Media technology control (LAN, IR, RS232), Sonos basic function control via UPnP

**Features:** macOS Compatibility

**In-app purchases:** none


### ReZa Pro for Zabbix

[App page](https://appshunter.io/ios/app/reza-pro-for-zabbix/id6445986635)

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 month subscription | $2.99 | per month |
| 12 months subscription | $17.99 | per year |


## Frequently asked questions

### Is SmartLink Control free?

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

### Is ReZa Pro for Zabbix free?

ReZa Pro for Zabbix is free to download, with in-app purchases available.

### Do SmartLink Control or ReZa Pro for Zabbix have ads?

Neither SmartLink Control nor ReZa Pro for Zabbix shows ads.

### Which is updated more often, SmartLink Control or ReZa Pro for Zabbix?

SmartLink Control ships an update every 3 months, and ReZa Pro for Zabbix fortnightly. Most recently, SmartLink Control was updated on November 1, 2026 and ReZa Pro for Zabbix on October 27, 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.*