# PLC Simulator 2, Ladder Logic vs Erdman Connect

The clearest difference is update cadence: PLC Simulator 2, Ladder Logic at every 6 days against Erdman Connect's every 2 months. 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.

PLC Simulator 2, Ladder Logic ships an update every 6 days, Erdman Connect every 2 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | PLC Simulator 2, Ladder Logic | Erdman Connect |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (121 ratings)](https://appshunter.io/ios/app/plc-simulator-2-ladder-logic/id1672572436/reviews)** | — |
| Number of ratings | **121** | — |
| Positive reviews | 84.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 2 months |
| Monetization | Free | — |
| Size | 29 MB | 115 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [David White](https://appshunter.io/developer/911163945) | [Erdman Automation](https://appshunter.io/developer/1841369099) |

## What reviewers say

### PLC Simulator 2, Ladder Logic

[App page](https://appshunter.io/ios/app/plc-simulator-2-ladder-logic/id1672572436)

This application enables students and professionals to test and explore basic PLC programming using ladder logic on their mobile devices. It supports various instructions, configurable rungs, and includes interactive animations for a hands-on learning experience. Save and modify up to 20 programs, with preloaded examples to aid understanding.

**Highlights:** Configurable rungs, Input/Output descriptions, Ladder logic simulation, Save up to 20 programs, Interactive animations, Preloaded example programs

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

**In-app purchases:** none


### Erdman Connect

[App page](https://appshunter.io/ios/app/erdman-connect/id6752858411)

**In-app purchases:** none


## Frequently asked questions

### Is PLC Simulator 2, Ladder Logic free?

PLC Simulator 2, Ladder Logic is free to download, with no in-app purchases.

### Is Erdman Connect free?

Erdman Connect is free to download, with no in-app purchases.

### Do PLC Simulator 2, Ladder Logic or Erdman Connect have ads?

Neither PLC Simulator 2, Ladder Logic nor Erdman Connect shows ads.

### Which is updated more often, PLC Simulator 2, Ladder Logic or Erdman Connect?

PLC Simulator 2, Ladder Logic ships an update every 6 days, and Erdman Connect every 2 months. Most recently, PLC Simulator 2, Ladder Logic was updated on November 3, 2026 and Erdman Connect on October 30, 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.*