Comparison

PLC Simulator, PLC Trainer vs Hydraulic Calculator Engineer

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

Head to head
About

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.

Highlights
  • Interactive PLC simulator
  • Learn PLC basics
  • Experiment with programming
  • Save and load programs
  • Understand logic circuits
  • User-friendly interface
Features
Read full description

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.

About

Hydraulic Calculator Engineer

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
Read full description

Hydraulic Engineer Calculators is a practical hydraulic engineering calculator and formula app for engineers, technicians, students, contractors, operators, and anyone working with fluid flow, pipes, pumps, pressure, open channels, hydraulic cylinders, or fluid mechanics. Quickly enter your values, select units, calculate an estimate, review result details, and check the formula used. Hydraulic calculators included: Flow & Pipe Calculators - Pipe Flow Velocity - Calculate fluid velocity from flow rate and pipe diameter - Flow Rate - Calculate volumetric flow from flow area and average velocity - Required Pipe Diameter - Estimate pipe diameter from design flow and velocity - Reynolds Number - Calculate Reynolds number for internal fluid flow Head Loss Calculators - Darcy-Weisbach Head Loss - Estimate pipe friction head loss - Hazen-Williams Head Loss - Estimate water pipe friction loss - Minor Loss - Calculate losses from fittings, valves, entrances, exits, and components Pressure & Head Calculators - Pressure to Head - Convert pressure to hydraulic head - Head to Pressure - Convert hydraulic head to pressure - Hydrostatic Pressure - Calculate pressure caused by fluid depth - Bernoulli Total Head - Calculate total hydraulic head Pump Calculators - Pump Power - Estimate hydraulic pump power from flow, head, and efficiency - Pump Head from Pressure - Calculate pump head from pressure difference - NPSH Available - Estimate Net Positive Suction Head Available Open Channel Flow Calculators - Manning Rectangular Channel - Estimate rectangular channel flow - Froude Number - Calculate the Froude number - Critical Depth - Estimate critical water depth - Orifice Flow - Calculate fluid discharge through an orifice Hydraulic System Calculators - Water Hammer Pressure - Estimate pressure rise from a rapid velocity change - Hydraulic Cylinder Force - Calculate cylinder force from pressure and piston area - Hydraulic Cylinder Speed - Calculate piston speed from flow rate and bore diameter Fluid Properties Calculator - Specific Gravity - Calculate specific gravity from fluid density Useful for: - Hydraulic engineering - Fluid mechanics - Pipe flow and pipe sizing - Water flow and pressure - Head loss and pipe friction - Pump systems and pump power - NPSH calculations - Open channel flow - Hydraulic cylinders - Water hammer - Irrigation, plumbing, water, and wastewater systems - Civil and mechanical engineering Supported units include: - m, mm, cm, ft, in - m², cm², mm², ft², in² - m³/s, m³/h, L/s, L/min, US gpm, ft³/s - Pa, kPa, MPa, bar, psi - m/s, ft/s - W, kW, hp Built-in formula guide Each calculator includes its formula, and the app links to a Hydraulic Engineer Guide with additional information about formulas, variables, units, calculation steps, practical uses, and important considerations. Selected calculators also include dynamic diagrams to help visualize values used in pipe, pressure, head, open channel, tank, and hydraulic cylinder calculations. Simple workflow: - Choose a calculator - Enter your known values - Select units - Tap Calculate - Review the result and details - Check the formula - Open the related guide for more information The built-in search makes it easy to find a specific hydraulic calculator by category or name. Important disclaimer These calculators provide preliminary hydraulic estimates only. Results are not a substitute for professional engineering judgment, certified calculations, manufacturer specifications, site-specific analysis, or applicable codes and standards. Always verify input values, units, fluid properties, pipe specifications, equipment limitations, safety factors, operating conditions, site conditions, and governing requirements before using a calculation for design, procurement, installation, testing, operation, maintenance, or any safety-critical application.

Screenshots

PLC Simulator, PLC Trainer4 screens
Hydraulic Calculator Engineer4 screens

Verdict

The call

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.

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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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

Scorecard4 real differences · 6 level
PLC Simulator, PLC Trainer versus Hydraulic Calculator Engineer: the parameters behind the verdict, then further details
ParameterPLC Simulator, PLC TrainerHydraulic Calculator Engineer
PriceFreeFree
Rating3.9 (59 ratings)4.3 (9 ratings) — better
Positive reviews75.0% of reviews — better0.0% of reviews
Number of ratings59 — better9
Update frequencyEvery 2 months — betterEvery 22 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.0 — better15.0
Further details — not scored
Size15 MB21 MB
Age rating4+4+
DeveloperDavid WhiteArsosa Network Inc.

Customer experience

PLC Simulator, PLC Trainer

All ratings59 ratings
Positive71.2%
Neutral5.1%
Negative23.7%
Written reviews32 reviews
Positive75.0%
Neutral6.3%
Negative18.8%

Hydraulic Calculator Engineer

All ratings9 ratings
Positive88.9%
Neutral0.0%
Negative11.1%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

PLC Simulator, PLC Trainer

No in-app purchases

None

Hydraulic Calculator Engineer

No in-app purchases

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.

Other comparisons