# Convex Programmer's Calculator vs PLC Simulator 2, Ladder Logic

The clearest difference is update cadence: PLC Simulator 2, Ladder Logic at every 6 days against Convex Programmer's Calculator's every 8 months. PLC Simulator 2, Ladder Logic also leads on review sentiment (84% vs 67%) and ratings volume (121 vs 6). On price, rating, ads and in-app purchases there is nothing between them.

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

PLC Simulator 2, Ladder Logic holds the better App Store score, 4.9 against 4.7. That said, the two scores are not equally well evidenced: PLC Simulator 2, Ladder Logic has 121 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 67% of Convex Programmer's Calculator's written reviews are positive against 84% of PLC Simulator 2, Ladder Logic's.

Convex Programmer's Calculator ships an update every 8 months, PLC Simulator 2, Ladder Logic every 6 days. The most recent releases landed on October 13, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Convex Programmer's Calculator | PLC Simulator 2, Ladder Logic |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (6 ratings)](https://appshunter.io/ios/app/convex-programmers-calculator/id1021414602/reviews) | **[4.9 (121 ratings)](https://appshunter.io/ios/app/plc-simulator-2-ladder-logic/id1672572436/reviews)** |
| Number of ratings | 6 | **121** |
| Positive reviews | 66.7% of reviews | **84.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 6 days** |
| Monetization | Free | Free |
| Size | 0 MB | 29 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Matthew Daigle](https://appshunter.io/developer/1021414601) | [David White](https://appshunter.io/developer/911163945) |

## What reviewers say

### Convex Programmer's Calculator

[App page](https://appshunter.io/ios/app/convex-programmers-calculator/id1021414602)

Convert numbers between hexadecimal, decimal, octal, and binary. Perform byte flips, bit shifts, and calculate two's complement. Features bit indicators and word grouping for improved binary readability.

**Highlights:** Number base conversion, Two's complement calculation, Byte flipping for endianness, Left and right bit shifting, Binary readability enhancements, Copy, paste, and clear functionality

**Features:** macOS Compatibility

**In-app purchases:** none


### PLC Simulator 2, Ladder Logic

[App page](https://appshunter.io/ios/app/plc-simulator-2-ladder-logic/id1672572436)

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.

**Highlights:** Configurable rungs, Input/Output descriptions, Ladder logic simulation, Save up to 20 programs, Interactive animations, Preloaded example programs

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

**In-app purchases:** none


## Frequently asked questions

### Is Convex Programmer's Calculator free?

Convex Programmer's Calculator is free to download, with no in-app purchases.

### Is PLC Simulator 2, Ladder Logic free?

PLC Simulator 2, Ladder Logic is free to download, with no in-app purchases.

### Which has better reviews, Convex Programmer's Calculator or PLC Simulator 2, Ladder Logic?

PLC Simulator 2, Ladder Logic is rated higher. Convex Programmer's Calculator averages 4.7 out of 5 from 6 ratings, while PLC Simulator 2, Ladder Logic averages 4.9 from 121 ratings.

### Do Convex Programmer's Calculator or PLC Simulator 2, Ladder Logic have ads?

Neither Convex Programmer's Calculator nor PLC Simulator 2, Ladder Logic shows ads.

### Which is updated more often, Convex Programmer's Calculator or PLC Simulator 2, Ladder Logic?

Convex Programmer's Calculator ships an update every 8 months, and PLC Simulator 2, Ladder Logic every 6 days. Most recently, Convex Programmer's Calculator was updated on October 13, 2026 and PLC Simulator 2, Ladder Logic on October 20, 2026.

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