# Electrical Engineering vs Star

The clearest difference is ads: Star at none against Electrical Engineering's shown. Star also leads on iOS requirement (12.0 vs 17.6). Electrical Engineering's advantage is update cadence (every 4 months vs every 27 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Electrical Engineering sells 2 one-off in-app purchases and Star sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Electrical Engineering ships an update every 4 months, Star every 27 months. The most recent releases landed on October 11, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Electrical Engineering | Star |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (252 ratings)](https://appshunter.io/ios/app/electrical-engineering-lite/id929996924/reviews)** | — |
| Number of ratings | **252** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 4 months** | Every 27 months |
| Monetization | Free with in-app purchases | — |
| Size | 49 MB | 3 MB |
| Requires iOS | 17.6 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [V PUGAZHENTHI](https://appshunter.io/developer/491898049) | [Siu Yuen Ho](https://appshunter.io/developer/814088527) |

## 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 |


### Star

[App page](https://appshunter.io/ios/app/star-delta-calculator/id1602175282)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Pro feature | $1.99 | one-time |


## Frequently asked questions

### Is Electrical Engineering free?

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

### Is Star free?

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

### Do Electrical Engineering or Star have ads?

Electrical Engineering shows ads; Star does not.

### Which is updated more often, Electrical Engineering or Star?

Electrical Engineering ships an update every 4 months, and Star every 27 months. Most recently, Electrical Engineering was updated on October 11, 2026 and Star on October 10, 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.*