# EE Calculators and Notes vs Power Electronics

The clearest difference is in-app purchases: EE Calculators and Notes at none against Power Electronics's 6. EE Calculators and Notes also leads on device support (3 vs 1) and iOS requirement (12.0 vs 17.0). On price, update cadence and ads there is nothing between them.

Both are free to download. Power Electronics sells 6 in-app purchases, starting at $9.99 per month. EE Calculators and Notes asks for nothing beyond the download.

EE Calculators and Notes ships an update every 4 months, Power Electronics every 2 months. The most recent releases landed on June 5, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | EE Calculators and Notes | Power Electronics |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/power-electronics/id6737322555/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 37 MB | 22 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Muhammad Faizan Ali Khan](https://appshunter.io/developer/1734026777) | [Forwa Elade Wunde](https://appshunter.io/developer/1685241344) |

## What reviewers say

### EE Calculators and Notes

[App page](https://appshunter.io/ios/app/ee-calculators-and-notes/id6642680188)

This app provides electrical engineering students and professionals with comprehensive notes, exam preparation MCQs, essential books, IQ tests, and powerful calculators. It offers offline access and regular updates to enhance learning and problem-solving skills in the field.

**Highlights:** Comprehensive electrical engineering notes, MCQs for exam preparation, Curated library of essential books, IQ tests for problem-solving, Powerful electrical engineering calculators, Offline access to content

**Features:** macOS Compatibility

**In-app purchases:** none


### Power Electronics

[App page](https://appshunter.io/ios/app/power-electronics/id6737322555)

This quiz app covers over 70 topics in power electronics, including switches, drive circuits, regulators, and various electronic components. It's designed to help users master the subject through interactive learning.

**Highlights:** Over 70 power electronics topics, Covers switches, drive circuits, regulators, Detailed component listings, Interactive quiz format, Master power electronics concepts

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month | $9.99 | per month |
| 6 Months | $19.99 | per 6 months |
| 1 Year | $29.99 | per year |
| 1500 | $0.99 | one-time |
| 3500 | $1.99 | one-time |
| 9000 | $3.99 | one-time |


## Frequently asked questions

### Is EE Calculators and Notes free?

EE Calculators and Notes is free to download, with no in-app purchases.

### Is Power Electronics free?

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

### Do EE Calculators and Notes or Power Electronics have ads?

Neither EE Calculators and Notes nor Power Electronics shows ads.

### Which is updated more often, EE Calculators and Notes or Power Electronics?

EE Calculators and Notes ships an update every 4 months, and Power Electronics every 2 months. Most recently, EE Calculators and Notes was updated on June 5, 2026 and Power Electronics on September 18, 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.*