# PLC Simulator 2, Ladder Logic vs LightEarth BT

The clearest difference is update cadence: PLC Simulator 2, Ladder Logic at every 6 days against LightEarth BT's every 6 weeks. PLC Simulator 2, Ladder Logic also leads on ratings volume (121 vs 2). LightEarth BT's advantage is iOS requirement (10.0 vs 15.0). 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.

On the App Store both sit at effectively the same score — 4.9 for PLC Simulator 2, Ladder Logic against 5.0 for LightEarth BT. That said, the two scores are not equally well evidenced: PLC Simulator 2, Ladder Logic has 121 ratings behind it against 2, so its average is the more settled of the two.

PLC Simulator 2, Ladder Logic ships an update every 6 days, LightEarth BT every 6 weeks. Both last shipped on November 3, 2026.

## The numbers

| Metric | PLC Simulator 2, Ladder Logic | LightEarth BT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (121 ratings)](https://appshunter.io/ios/app/plc-simulator-2-ladder-logic/id1672572436/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/lightearth-bt/id6443578045/reviews)** |
| Number of ratings | **121** | 2 |
| Positive reviews | 84.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 6 weeks |
| Monetization | Free | Free |
| Size | 29 MB | 13 MB |
| Requires iOS | 15.0 | **10.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [David White](https://appshunter.io/developer/911163945) | [SUNSHINE TECHNOLOGY(CHINA) CO., LIMITED](https://appshunter.io/developer/1647326640) |

## What reviewers say

### 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


### LightEarth BT

[App page](https://appshunter.io/ios/app/lightearth-bt/id6443578045)

Control and monitor your SUNT Series Hybrid Inverter remotely using your mobile device's Bluetooth. Set working modes and view operational data without needing a Wi-Fi network.

**Highlights:** Remote inverter control, Bluetooth connectivity, View operational data, Set working modes, No Wi-Fi required

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

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

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

### Is LightEarth BT free?

LightEarth BT is free to download, with no in-app purchases.

### Which has better reviews, PLC Simulator 2, Ladder Logic or LightEarth BT?

LightEarth BT is rated higher. PLC Simulator 2, Ladder Logic averages 4.9 out of 5 from 121 ratings, while LightEarth BT averages 5.0 from 2 ratings.

### Do PLC Simulator 2, Ladder Logic or LightEarth BT have ads?

Neither PLC Simulator 2, Ladder Logic nor LightEarth BT shows ads.

### Which is updated more often, PLC Simulator 2, Ladder Logic or LightEarth BT?

PLC Simulator 2, Ladder Logic ships an update every 6 days, and LightEarth BT every 6 weeks. Most recently, PLC Simulator 2, Ladder Logic was updated on November 3, 2026 and LightEarth BT on November 3, 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.*