# PLC Simulator 2, Ladder Logic vs Modbus TCP Station

The clearest difference is in-app purchases: PLC Simulator 2, Ladder Logic at none against Modbus TCP Station's 2. PLC Simulator 2, Ladder Logic also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Modbus TCP Station sells 2 one-off in-app purchases. PLC Simulator 2, Ladder Logic asks for nothing beyond the download.

PLC Simulator 2, Ladder Logic ships an update every 6 days, Modbus TCP Station every 10 days. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | PLC Simulator 2, Ladder Logic | Modbus TCP Station |
| --- | --- | --- |
| 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** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 6 days** | Every 10 days |
| Monetization | Free | — |
| Size | 29 MB | 31 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [David White](https://appshunter.io/developer/911163945) | [DONGSOO LEE](https://appshunter.io/developer/1868670088) |

## 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


### Modbus TCP Station

[App page](https://appshunter.io/ios/app/modbus-tcp-station/id6757790321)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1-Month Premium Pass | $0.99 | one-time |
| Premium Upgrade | $9.99 | one-time |


## 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 Modbus TCP Station free?

Modbus TCP Station is free to download, with in-app purchases available.

### Do PLC Simulator 2, Ladder Logic or Modbus TCP Station have ads?

Modbus TCP Station shows ads; PLC Simulator 2, Ladder Logic does not.

### Which is updated more often, PLC Simulator 2, Ladder Logic or Modbus TCP Station?

PLC Simulator 2, Ladder Logic ships an update every 6 days, and Modbus TCP Station every 10 days. Most recently, PLC Simulator 2, Ladder Logic was updated on October 20, 2026 and Modbus TCP Station on October 24, 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.*