# Electrical Engineering Pack vs Star

The clearest difference is price: Star at Free against Electrical Engineering Pack's $4.99. Star also leads on iOS requirement (12.0 vs 17.6). Electrical Engineering Pack's advantage is in-app purchases (none vs 1) and update cadence (every 4 months vs every 27 months). On ads and device support there is nothing between them.

Star is free to download; Electrical Engineering Pack costs $4.99 up front. Star sells 1 one-off in-app purchase. Electrical Engineering Pack asks for nothing beyond the download.

Electrical Engineering Pack ships an update every 4 months, Star every 27 months. The most recent releases landed on October 19, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Electrical Engineering Pack | Star |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[4.7 (76 ratings)](https://appshunter.io/ios/app/electrical-engineering-pack/id505423236/reviews)** | — |
| Number of ratings | **76** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 27 months |
| Monetization | Paid | — |
| Size | 14 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 Pack

[App page](https://appshunter.io/ios/app/electrical-engineering-pack/id505423236)

This app provides a comprehensive suite of electrical calculators and converters for engineers, electricians, and students. It features over 60 calculators for various electrical parameters and 16 converter categories with extensive unit support. Calculations update automatically as input values or units are changed.

**Highlights:** 60+ Electrical Calculators, 16 Electrical Converter Categories, Automatic Calculation Updates, Resistor Color Code Calculator, Upgraded Voltage Drop Calculator, NEC/IEEE Standards Compliant

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

**In-app purchases:** none


### 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 Pack free?

Electrical Engineering Pack costs $4.99, with no in-app purchases.

### Is Star free?

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

### Do Electrical Engineering Pack or Star have ads?

Neither Electrical Engineering Pack nor Star shows ads.

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

Electrical Engineering Pack ships an update every 4 months, and Star every 27 months. Most recently, Electrical Engineering Pack was updated on October 19, 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.*