STS vs PLC Simulator 2, Ladder Logic
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
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.
- Configurable rungs
- Input/Output descriptions
- Ladder logic simulation
- Save up to 20 programs
- Interactive animations
- Preloaded example programs
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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.
Screenshots
Verdict
The clearest difference is update cadence: PLC Simulator 2, Ladder Logic at every 6 days against STS's every 5 months. PLC Simulator 2, Ladder Logic also leads on ratings volume (121 vs 1). STS's advantage is iOS requirement (12.2 vs 15.0). On price, rating, ads and in-app purchases 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.
On the App Store both sit at effectively the same score — 5.0 for STS against 4.9 for PLC Simulator 2, Ladder Logic. That said, the two scores are not equally well evidenced: PLC Simulator 2, Ladder Logic has 121 ratings behind it against 1, so its average is the more settled of the two.
STS ships an update every 5 months, PLC Simulator 2, Ladder Logic every 6 days. The most recent releases landed on October 16, 2026 and October 20, 2026 respectively.
| Parameter | STS | PLC Simulator 2, Ladder Logic |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.9 (121 ratings) |
| Positive reviews | — | 84.0% of reviews |
| Number of ratings | 1 | 121 — better |
| Update frequency | Every 5 months | Every 6 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.2 — better | 15.0 |
| Further details — not scored | ||
| Size | 67 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | Siemens AG | David White |
Customer experience
STS
PLC Simulator 2, Ladder Logic
In-app purchases
STS
No in-app purchases
PLC Simulator 2, Ladder Logic
No in-app purchases
Questions
Is STS free?
Is PLC Simulator 2, Ladder Logic free?
Which has better reviews, STS or PLC Simulator 2, Ladder Logic?
Do STS or PLC Simulator 2, Ladder Logic have ads?
Which is updated more often, STS or PLC Simulator 2, Ladder Logic?
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