# PLC Simulator, PLC Trainer vs Hydraulic Calculator Engineer

The clearest difference is review sentiment: PLC Simulator, PLC Trainer at 75% against Hydraulic Calculator Engineer's 0%. PLC Simulator, PLC Trainer also leads on update cadence (every 2 months vs every 22 months) and ratings volume (59 vs 9). Hydraulic Calculator Engineer's advantage is rating (4.3 vs 3.9). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Hydraulic Calculator Engineer holds the better App Store score, 4.3 against 3.9. That said, the two scores are not equally well evidenced: PLC Simulator, PLC Trainer has 59 ratings behind it against 9, so its average is the more settled of the two. Written reviews complicate that: 75% of PLC Simulator, PLC Trainer's written reviews are positive against 0% of Hydraulic Calculator Engineer's, so the app with the better star average is not the one people write more warmly about.

PLC Simulator, PLC Trainer ships an update every 2 months, Hydraulic Calculator Engineer every 22 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | PLC Simulator, PLC Trainer | Hydraulic Calculator Engineer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (59 ratings)](https://appshunter.io/ios/app/plc-simulator-plc-trainer/id1326500777/reviews) | **[4.3 (9 ratings)](https://appshunter.io/ios/app/hydraulic-calculator-engineer/id1664790770/reviews)** |
| Number of ratings | **59** | 9 |
| Positive reviews | **75.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 22 months |
| Monetization | Free | Free |
| Size | 15 MB | 21 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [David White](https://appshunter.io/developer/911163945) | [Arsosa Network Inc.](https://appshunter.io/developer/1209042440) |

## What reviewers say

### PLC Simulator, PLC Trainer

[App page](https://appshunter.io/ios/app/plc-simulator-plc-trainer/id1326500777)

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.

**Highlights:** Interactive PLC simulator, Learn PLC basics, Experiment with programming, Save and load programs, Understand logic circuits, User-friendly interface

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

**In-app purchases:** none


### Hydraulic Calculator Engineer

[App page](https://appshunter.io/ios/app/hydraulic-calculator-engineer/id1664790770)

This app offers a suite of hydraulic calculations for technicians and engineers. It simplifies complex hydraulics by automatically computing results based on user-entered values, eliminating the need for manual formula application.

**Highlights:** Cylinder Calculation, Power Calculation, Pressure Difference, Piston Diameter, Speed Calculation, Lifting Time, Volume Flow

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

**In-app purchases:** none


## Frequently asked questions

### Is PLC Simulator, PLC Trainer free?

PLC Simulator, PLC Trainer is free to download, with no in-app purchases.

### Is Hydraulic Calculator Engineer free?

Hydraulic Calculator Engineer is free to download, with no in-app purchases.

### Which has better reviews, PLC Simulator, PLC Trainer or Hydraulic Calculator Engineer?

Hydraulic Calculator Engineer is rated higher. PLC Simulator, PLC Trainer averages 3.9 out of 5 from 59 ratings, while Hydraulic Calculator Engineer averages 4.3 from 9 ratings.

### Do PLC Simulator, PLC Trainer or Hydraulic Calculator Engineer have ads?

Neither PLC Simulator, PLC Trainer nor Hydraulic Calculator Engineer shows ads.

### Which is updated more often, PLC Simulator, PLC Trainer or Hydraulic Calculator Engineer?

PLC Simulator, PLC Trainer ships an update every 2 months, and Hydraulic Calculator Engineer every 22 months. Most recently, PLC Simulator, PLC Trainer was updated on October 24, 2026 and Hydraulic Calculator Engineer on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*