# Electrical Engineering vs P&ID

The clearest difference is ads: P&ID at none against Electrical Engineering's shown. P&ID also leads on update cadence (every 2 weeks vs every 4 months). Electrical Engineering's advantage is review sentiment (33% vs 0%) and rating (4.7 vs 4.3). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Electrical Engineering sells 2 one-off in-app purchases and P&ID sells 3 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Electrical Engineering holds the better App Store score, 4.7 against 4.3. That said, the two scores are not equally well evidenced: Electrical Engineering has 252 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 33% of Electrical Engineering's written reviews are positive against 0% of P&ID's.

Electrical Engineering ships an update every 4 months, P&ID every 2 weeks. The most recent releases landed on October 11, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Electrical Engineering | P&ID |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (252 ratings)](https://appshunter.io/ios/app/electrical-engineering-lite/id929996924/reviews)** | [4.3 (6 ratings)](https://appshunter.io/ios/app/p-and-id/id6738429006/reviews) |
| Number of ratings | **252** | 6 |
| Positive reviews | **33.3% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 49 MB | 6 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [V PUGAZHENTHI](https://appshunter.io/developer/491898049) | [Forwa Elade Wunde](https://appshunter.io/developer/1685241344) |

## What reviewers say

### Electrical Engineering

[App page](https://appshunter.io/ios/app/electrical-engineering-lite/id929996924)

This app offers a comprehensive suite of electrical calculations and conversions for professionals and students. It handles diverse units and provides precise results for various electrical engineering tasks, including voltage, current, power, and more.

**Highlights:** 60 Electrical Calculators, 16 Electrical Converters, Voltage, Current, Resistance, Power calculations, kVA to Amps and Amps to kVA conversions, Single and Three Phase Power calculations, Star to Delta & Delta to Star conversions, Unit handling for diverse electrical measurements

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 16 Electrical Converters | $0.99 | one-time |
| Electrical Engineering Pack | $3.99 | one-time |


### P&ID

[App page](https://appshunter.io/ios/app/p-and-id/id6738429006)

Master the art of reading and interpreting Piping and Instrumentation Diagrams (P&IDs) with this engaging trivia quiz. Test your knowledge of P&ID symbols and their applications through interactive quizzes with detailed explanations and real-world examples. Learn at your own pace with multiple difficulty levels and offline mode.

**Highlights:** Interactive P&ID symbol quizzes, Symbol categorization, Detailed explanations and examples, Multiple difficulty levels, Offline learning mode

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Month | $9.99 | per month |
| 6 months | $19.99 | per 6 months |
| Year | $29.99 | per year |


## Frequently asked questions

### Is Electrical Engineering free?

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

### Is P&ID free?

P&ID is free to download, with in-app purchases available.

### Which has better reviews, Electrical Engineering or P&ID?

Electrical Engineering is rated higher. Electrical Engineering averages 4.7 out of 5 from 252 ratings, while P&ID averages 4.3 from 6 ratings.

### Do Electrical Engineering or P&ID have ads?

Electrical Engineering shows ads; P&ID does not.

### Which is updated more often, Electrical Engineering or P&ID?

Electrical Engineering ships an update every 4 months, and P&ID every 2 weeks. Most recently, Electrical Engineering was updated on October 11, 2026 and P&ID 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.*