# Electrical Engineering vs power grid calculator

The clearest difference is in-app purchases: power grid calculator at none against Electrical Engineering's 8. power grid calculator also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Electrical Engineering sells 7 in-app purchases, starting at $3.99 per month. power grid calculator asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 22, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Electrical Engineering | power grid calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (12 ratings)](https://appshunter.io/ios/app/electrical-engineering-quiz/id1330321712/reviews)** | — |
| Number of ratings | **12** | — |
| Positive reviews | 73.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 115 MB | 2 MB |
| Requires iOS | 15.5 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Carlo Terracciano](https://appshunter.io/developer/1159639539) | [Ralph Karmoll](https://appshunter.io/developer/1304350050) |

## What reviewers say

### Electrical Engineering

[App page](https://appshunter.io/ios/app/electrical-engineering-quiz/id1330321712)

This app provides electrical calculations and fundamental concepts for students and professionals. It covers Ohm's Law, power calculations, circuit analysis, and advanced topics like wire sizing and power factor correction.

**Highlights:** Electrical calculations, Basic electrical knowledge, Advanced electrical topics, Ohm's Law and power calculations, Circuit analysis theorems, Wire sizing and voltage drop, Resistor color codes

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription - Electro | $3.99 | per month |
| Monthly subscription - Electro | $5.99 | per month |
| Annual Subscription Electronic | $8.99 | per year |
| Annual Subscription Electronic | $24.99 | per year |
| Annual Subscription Electronic | $24.99 | per year |
| Lifetime Subscription Electro | $29.99 | one-time |
| Circuits & Electric Machines | $99.99 | one-time |


### power grid calculator

[App page](https://appshunter.io/ios/app/power-grid-calculator/id1567786064)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Electrical Engineering free?

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

### Is power grid calculator free?

power grid calculator is free to download, with no in-app purchases.

### Do Electrical Engineering or power grid calculator have ads?

Electrical Engineering shows ads; power grid calculator does not.

### Which is updated more often, Electrical Engineering or power grid calculator?

Electrical Engineering ships an update every 2 months, and power grid calculator every 2 months. Most recently, Electrical Engineering was updated on October 22, 2026 and power grid calculator on October 3, 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.*