PLC Simulator, PLC Trainer vs STS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PLC Simulator, PLC Trainer
Learn the fundamentals of Programmable Logic Controllers (PLCs) with an interactive simulator. Experiment with basic programming concepts, including timers, counters, and logic instructions. Save your progress and revisit projects anytime.
- Interactive PLC simulator
- Learn PLC basics
- Experiment with programming
- Save and load programs
- Understand logic circuits
- User-friendly interface
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This app is designed to help anyone that is new to PLCs and wants to learn the basics of "How a PLC works" and PLAY with a simple simulator to experiment with some simple programming. The app consist of three main sections, "How a PLC works", "PLC Block Diagram" and the PLC Simulator. The PLC Simulator allows the beginner to learn simple programming skills with 3 timers, 2 counters, 6 compare instructions, 2 Binary outputs and 3 RES outputs. The user interface is very friendly. For first time users, there is an information icon that shows just how easy this app is to program. The NEW SAVE feature allows a user to start a program and come back to it at a later time. This app also helps people better understand the exam-off instruction -[/]-, the "Seal-In" or "Latching" logic, such as a motor start/stop circuit and much more. Enjoy the fast growing world of PLCs. My daughter found it very useful for her Mechatronics class. Try it, you will like it.
STS
This utility helps users select the appropriate Siemens soft starter for their specific needs. It simulates applications based on various parameters and provides detailed reports, with direct links to product data.
- Soft starter application simulation
- Input data for environment, motor, and load
- Starting parameter configuration
- Suggested soft starter selection
- Simulation and component reports
- Direct access to Siemens Industry Mall data
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This application allows users to find the right Siemens soft starter for his specific application. Features: * Simulate a soft starter application based on your input data: ** Environment & supply ** Motor ** Load ** Starting parameters for the application ** Additional functions ** Starting profile * Select a suggested soft starter * Generate a report for a selected soft starter with the summary of the simulation and optional feeder main components * Direct access to selected soft starter data in the Siemens Industry Mall * Metrics: SI and Imperial * Languages: English, German, Chinese, French, Spanish, Portuguese, Turkish, Czech, Italian and Russian
Screenshots
Verdict
The clearest difference is rating: STS at 5.0 against PLC Simulator, PLC Trainer's 3.9. STS also leads on iOS requirement (12.2 vs 14.0). PLC Simulator, PLC Trainer's advantage is ratings volume (59 vs 1) and update cadence (every 2 months vs every 5 months). On price, ads, in-app purchases and monetization model 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
STS holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: PLC Simulator, PLC Trainer has 59 ratings behind it against 1, so its average is the more settled of the two.
PLC Simulator, PLC Trainer ships an update every 2 months, STS every 5 months. The most recent releases landed on October 3, 2026 and October 8, 2026 respectively.
| Parameter | PLC Simulator, PLC Trainer | STS |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (59 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 59 — better | 1 |
| Update frequency | Every 2 months — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 | 12.2 — better |
| Further details — not scored | ||
| Size | 15 MB | 67 MB |
| Age rating | 4+ | 4+ |
| Developer | David White | Siemens AG |
Customer experience
PLC Simulator, PLC Trainer
STS
In-app purchases
PLC Simulator, PLC Trainer
No in-app purchases
STS
No in-app purchases
Questions
Is PLC Simulator, PLC Trainer free?
Is STS free?
Which has better reviews, PLC Simulator, PLC Trainer or STS?
Do PLC Simulator, PLC Trainer or STS have ads?
Which is updated more often, PLC Simulator, PLC Trainer or STS?
Other comparisons
