NerdCalc vs PLC Simulator, PLC Trainer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NerdCalc
Perform calculations across binary, hexadecimal, and decimal number bases simultaneously. Easily switch input modes and see results update instantly for all bases. Supports unsigned and 2's complement for negative numbers, along with arithmetic, logic, and bitwise operations.
- Simultaneous base display
- Switchable input modes
- Unsigned and 2's complement support
- Arithmetic operations
- Logic operations
- Bitwise shifting
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NerdCalc is a binary, hexadecimal and decimal calculator that displays all three number bases at the same time. With NerdCalc, you can quickly switch which base you are inputting and the result of your calculations is always updated for all three bases, no matter what the current input mode. NerdCalc supports both unsigned and 2’s complement, to allow for negative numbers, and can perform basic arithmetic and logic operations as well as bitwise shifting. Enjoy!
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.
Screenshots
Verdict
The clearest difference is rating: NerdCalc at 4.8 against PLC Simulator, PLC Trainer's 3.9. NerdCalc also leads on review sentiment (85% vs 75%) and ratings volume (183 vs 59). PLC Simulator, PLC Trainer's advantage is update cadence (every 2 months vs every 19 months) and device support (3 vs 1). 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.
NerdCalc holds the better App Store score, 4.8 against 3.9. Both are backed by a comparable volume of ratings — 183 and 59 respectively. Written reviews point the same way: 85% of NerdCalc's written reviews are positive against 75% of PLC Simulator, PLC Trainer's.
NerdCalc ships an update every 19 months, PLC Simulator, PLC Trainer every 2 months. The most recent releases landed on October 19, 2026 and October 16, 2026 respectively.
| Parameter | NerdCalc | PLC Simulator, PLC Trainer |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (183 ratings) — better | 3.9 (59 ratings) |
| Positive reviews | 84.8% of reviews — better | 75.0% of reviews |
| Number of ratings | 183 — better | 59 |
| Update frequency | Every 19 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 14.0 — better |
| Further details — not scored | ||
| Size | 0 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | Nidal Fakhouri | David White |
Customer experience
NerdCalc
PLC Simulator, PLC Trainer
In-app purchases
NerdCalc
No in-app purchases
PLC Simulator, PLC Trainer
No in-app purchases
Questions
Is NerdCalc free?
Is PLC Simulator, PLC Trainer free?
Which has better reviews, NerdCalc or PLC Simulator, PLC Trainer?
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Which is updated more often, NerdCalc or PLC Simulator, PLC Trainer?
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