Comparison

PLC Simulator 2, Ladder Logic vs Modbus TCP Station

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

PLC Simulator 2, Ladder Logic

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
Read full description

This app allows PLC students (Electricians, apprentices and college students) to test their small homework assignments using their phone and explore basic PLC programming. It has input instructions, outputs, timers, counters, latches, unlatches and compare blocks, each rung is FULLY configurable with 6 instruction long and 4 instructions deep. Features include: - Three Interactive animations. - Includes the code to run animation 3, "Bottling Plant". - Input and Output descriptions. - Rung descriptions. - 25 programmable rungs. - Simple to construct and run PLC ladder logic. - Save up to 40 programs. - Includes 5 preloaded example programs that can be modified to see the affects of the changes. - It’s FREE with NO ADVERTISEMENTS. --- (Makes it a great learning tool for instructors to help their students to learn ladder logic.) --- Give it a try, I think you will like it.

About

Modbus TCP Station

Features
Read full description

Turn your smartphone into a powerful Modbus TCP Master tool! Designed for PLC engineers, system integrators, and DIY enthusiasts, Modbus TCP Station allows you to communicate with, monitor, and control any Modbus TCP-enabled device (PLC, HMI, SCADA, ESP32, Raspberry Pi, etc.) with ease. Whether you are debugging a smart factory system or testing a home automation project, this app provides a professional interface to visualize and manipulate data in real-time. Key Features: • Complete Connectivity: Connect to any Modbus TCP Server (Slave) via IP and Port. • Comprehensive Function Codes: Supports FC01 (Coil), FC02 (Discrete Input), FC03 (Holding Register), and FC04 (Input Register). • Flexible Data Formats: View data in Binary, Unsigned/Signed Integer, Hex, Float, and Double. • Advanced Byte Swapping: Supports Inverse/Swap options for handling complex Word orders (Big Endian/Little Endian). • Real-time Monitoring: Watch your data change instantly with efficient polling. • Write Capabilities: Easily write values to Coils and Registers for device control. Pro Features: • Profile Management: Save and load unlimited connection profiles and register setups. • Ad-Free Experience: Focus on your work without distractions. • Unlimited Views: Create as many data blocks as you need. Multi-Language Support: • English • German (Deutsch) • Korean (한국어) • Japanese (日本語) • Traditional Chinese (繁體中文 - TW/HK) • Simplified Chinese (中文) Why choose Modbus TCP Station? Stop carrying heavy laptops for simple checks. With a clean UI and robust performance, this is the essential pocket tool for every automation engineer. Download now and master your Modbus network!

Screenshots

PLC Simulator 2, Ladder Logic4 screens
Modbus TCP Station4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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.

Scorecard2 real differences · 8 level
PLC Simulator 2, Ladder Logic versus Modbus TCP Station: the parameters behind the verdict, then further details
ParameterPLC Simulator 2, Ladder LogicModbus TCP Station
PriceFreeFree
Rating4.9 (121 ratings) — better—
Positive reviews84.0% of reviews—
Number of ratings121 — better—
Update frequencyEvery 6 days — betterEvery 10 days
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size29 MB31 MB
Age rating4+4+
DeveloperDavid WhiteDONGSOO LEE

In-app purchases

None

PLC Simulator 2, Ladder Logic

No in-app purchases

2 purchases

Modbus TCP Station

One-time2
  • 1-Month Premium Pass$0.99
  • Premium Upgrade$9.99

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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