# PLC staircase vs E

The clearest difference is in-app purchases: PLC staircase at none against E's 3. PLC staircase also leads on ads (none vs shown) and iOS requirement (12.0 vs 15.0). E's advantage is device support (4 vs 2). On price there is nothing between them.

Both are free to download. E sells 3 in-app purchases, starting at $2.99 per month. PLC staircase asks for nothing beyond the download.

## The numbers

| Metric | PLC staircase | E |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/e-light-circuit-simulator/id6787548627/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Every 6 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 29 MB | 40 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [菊安 李](https://appshunter.io/developer/1770803844) | [Mohamed Mubarak](https://appshunter.io/developer/6787548629) |

## What reviewers say

### PLC staircase

[App page](https://appshunter.io/ios/app/plc-staircase/id6723864850)

**In-app purchases:** none


### E

[App page](https://appshunter.io/ios/app/e-light-circuit-simulator/id6787548627)

Learn electrical engineering by building and simulating circuits. This app offers a realistic physics engine, a vast library of industrial components, and professional-grade calculators for hands-on learning and analysis.

**Highlights:** Interactive circuit simulator with MNA physics engine, 125+ industrial electrical components, Real-time voltage, current, and power calculations, 20 professional engineer-grade calculators, Safe simulation of component failures, Cross-device project syncing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $2.99 | per month |
| Pro Quarterly | $7.99 | per 3 months |
| Pro Yearly | $24.99 | per year |


## Frequently asked questions

### Is PLC staircase free?

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

### Is E free?

E is free to download, with in-app purchases available.

### Do PLC staircase or E have ads?

E shows ads; PLC staircase does not.

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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.*