# TrueLine vs E

The clearest difference is ads: TrueLine at none against E's shown. E's advantage is update cadence (every 3 weeks vs every 2 months). On price, rating, ratings volume and in-app purchases there is nothing between them.

Both are free to download. TrueLine sells 3 in-app purchases, starting at $4.99 per month and E sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for TrueLine against 5.0 for E. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

TrueLine ships an update every 2 months, E every 3 weeks. Both last shipped on October 25, 2026.

## The numbers

| Metric | TrueLine | E |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/trueline-one-line-diagram/id6773567376/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/e-light-circuit-simulator/id6787548627/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 3 MB | 37 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Nicole Nalley](https://appshunter.io/developer/1894562817) | [Mohamed Mubarak](https://appshunter.io/developer/6787548629) |

## What reviewers say

### TrueLine

[App page](https://appshunter.io/ios/app/trueline-one-line-diagram/id6773567376)

Create professional electrical one-line diagrams on your iPhone or iPad. Utilize practical templates, input project details, and review code-referenced sizing. A one-time purchase unlocks premium features and vector PDF export.

**Highlights:** One-line diagram creation, Electrical templates, Project and equipment details, NEC-referenced sizing, Vector PDF export, Offline project storage

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TrueLine Pro | $4.99 | per month |
| TrueLine Pro | $39.99 | per year |
| TrueLine Pro Unlock | $9.99 | one-time |


### 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 TrueLine free?

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

### Is E free?

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

### Which has better reviews, TrueLine or E?

TrueLine and E are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do TrueLine or E have ads?

E shows ads; TrueLine does not.

### Which is updated more often, TrueLine or E?

TrueLine ships an update every 2 months, and E every 3 weeks. Most recently, TrueLine was updated on October 25, 2026 and E on October 25, 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.*