# Rockwell Automation Systems vs PLC Controller & Simulator

The clearest difference is update cadence: Rockwell Automation Systems at fortnightly against PLC Controller & Simulator's every 4 months. Rockwell Automation Systems also leads on iOS requirement (8.0 vs 15.0). 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.

Rockwell Automation Systems ships an update fortnightly, PLC Controller & Simulator every 4 months. The most recent releases landed on November 11, 2026 and November 13, 2026 respectively.

## The numbers

| Metric | Rockwell Automation Systems | PLC Controller & Simulator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 4 months |
| Size | 565 MB | 39 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rockwell Automation](https://appshunter.io/developer/432749786) | [Kevin Andoh](https://appshunter.io/developer/6785697530) |

## What reviewers say

### Rockwell Automation Systems

[App page](https://appshunter.io/ios/app/rockwell-automation-systems/id1424404098)

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

**In-app purchases:** none


### PLC Controller & Simulator

[App page](https://appshunter.io/ios/app/plc-controller-and-simulator/id6785697528)

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

**In-app purchases:** none


## Frequently asked questions

### Is Rockwell Automation Systems free?

Rockwell Automation Systems is free to download, with no in-app purchases.

### Is PLC Controller & Simulator free?

PLC Controller & Simulator is free to download, with no in-app purchases.

### Do Rockwell Automation Systems or PLC Controller & Simulator have ads?

Neither Rockwell Automation Systems nor PLC Controller & Simulator shows ads.

### Which is updated more often, Rockwell Automation Systems or PLC Controller & Simulator?

Rockwell Automation Systems ships an update fortnightly, and PLC Controller & Simulator every 4 months. Most recently, Rockwell Automation Systems was updated on November 11, 2026 and PLC Controller & Simulator on November 13, 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.*