# Sm@rtClient vs Busch Pfeiffer

The clearest difference is update cadence: Busch Pfeiffer at fortnightly against Sm@rtClient's every 10 months. Busch Pfeiffer also leads on iOS requirement (16.0 vs 18.0). 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.

Sm@rtClient ships an update every 10 months, Busch Pfeiffer fortnightly. The most recent releases landed on October 16, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Sm@rtClient | Busch Pfeiffer |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 57 MB | 60 MB |
| Requires iOS | 18.0 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Siemens AG](https://appshunter.io/developer/394503271) | [Busch Dienste GmbH](https://appshunter.io/developer/1655082856) |

## What reviewers say

### Sm@rtClient

[App page](https://appshunter.io/ios/app/smrtclient/id874209707)

Remotely operate and monitor industrial HMI systems from your mobile device. Access operator stations, view system layouts, and interact with hardware buttons via touch input. Supports various SIMATIC HMI systems and offers both view-only and coordinated operation modes.

**Highlights:** Remote operation of HMI systems, View-only monitoring mode, Coordinated operation with active remote control, Access to hardware buttons, Automatic HMI panel detection, Browser-based access to Unified Panels, WebView access to PLC webpages

**In-app purchases:** none


### Busch Pfeiffer

[App page](https://appshunter.io/ios/app/busch-pfeiffer/id6758831459)

**In-app purchases:** none


## Frequently asked questions

### Is Sm@rtClient free?

Sm@rtClient is free to download, with no in-app purchases.

### Is Busch Pfeiffer free?

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

### Do Sm@rtClient or Busch Pfeiffer have ads?

Neither Sm@rtClient nor Busch Pfeiffer shows ads.

### Which is updated more often, Sm@rtClient or Busch Pfeiffer?

Sm@rtClient ships an update every 10 months, and Busch Pfeiffer fortnightly. Most recently, Sm@rtClient was updated on October 16, 2026 and Busch Pfeiffer on October 9, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*