# Sm@rtClient vs Electronics Toolkit calc

The clearest difference is price: Sm@rtClient at Free against Electronics Toolkit calc's $4.99. Electronics Toolkit calc's advantage is update cadence (every 4 months vs every 10 months) and iOS requirement (13.0 vs 18.0). On ads, in-app purchases and device support there is nothing between them.

Sm@rtClient is free to download; Electronics Toolkit calc costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Sm@rtClient ships an update every 10 months, Electronics Toolkit calc every 4 months. The most recent releases landed on October 21, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Sm@rtClient | Electronics Toolkit calc |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 4 months** |
| Monetization | Free | — |
| Size | 57 MB | 25 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Siemens AG](https://appshunter.io/developer/394503271) | [Kantaben Gorasiya](https://appshunter.io/developer/1640260396) |

## 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


### Electronics Toolkit calc

[App page](https://appshunter.io/ios/app/electronics-toolkit-calc/id6473828034)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sm@rtClient free?

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

### Is Electronics Toolkit calc free?

Electronics Toolkit calc costs $4.99, with no in-app purchases.

### Do Sm@rtClient or Electronics Toolkit calc have ads?

Neither Sm@rtClient nor Electronics Toolkit calc shows ads.

### Which is updated more often, Sm@rtClient or Electronics Toolkit calc?

Sm@rtClient ships an update every 10 months, and Electronics Toolkit calc every 4 months. Most recently, Sm@rtClient was updated on October 21, 2026 and Electronics Toolkit calc on October 17, 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.*