# EE ToolKit vs Impedance Calculators

The clearest difference is ads: EE ToolKit at none against Impedance Calculators's shown. EE ToolKit also leads on update cadence (every 3 months vs every 21 months) and ratings volume (1.4K vs 12). Impedance Calculators's advantage is rating (5.0 vs 4.7). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. EE ToolKit sells 1 one-off in-app purchase and Impedance Calculators sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Impedance Calculators holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: EE ToolKit has 1.4K ratings behind it against 12, so its average is the more settled of the two.

EE ToolKit ships an update every 3 months, Impedance Calculators every 21 months. The most recent releases landed on September 23, 2026 and August 30, 2026 respectively.

## The numbers

| Metric | EE ToolKit | Impedance Calculators |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (1.4K ratings)](https://appshunter.io/ios/app/ee-toolkit/id391792609/reviews) | **[5.0 (12 ratings)](https://appshunter.io/ios/app/impedance-calculators/id1571901358/reviews)** |
| Number of ratings | **1.4K** | 12 |
| Positive reviews | 90.2% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 months** | Every 21 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 289 MB | 8 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Thomas Gruber](https://appshunter.io/developer/342699861) | [V PUGAZHENTHI](https://appshunter.io/developer/491898049) |

## What reviewers say

### EE ToolKit

[App page](https://appshunter.io/ios/app/ee-toolkit/id391792609)

This comprehensive toolkit offers over 160 electronic applications, calculators, and reference tools for engineers, students, and hobbyists. It features a multi-functional keyboard, color code tools, audio scope, frequency generator, and component references with datasheet access. The app supports real-time circuit simulations and includes a file manager for saving calculations.

**Highlights:** Over 160 electronic applications, Multi-functional keyboard, Color code and SMD code tools, Audio scope and frequency pitch detector, Frequency generator, Component reference section with datasheet access, Real-time circuit simulations

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Complete EE ToolKit Pro Upgrade | $9.99 | one-time |

**What reviewers like**

- 👍 Useful tools and features
- 🚀 Comprehensive and informative
- 👍 Intuitive and easy to use
- 👍 Helpful for both beginners and professionals
- 👍 Regularly updated with improvements

**What reviewers complain about**

- 🔒 Many features locked behind paywall
- 🐛 Some bugs and glitches reported
- 🔍 Limited free version functionality
- 📱 Accessibility issues for visually impaired users

**Reported bugs**

- Locked features not unlocking properly
- Certain tools and calculators not functioning as expected

**Requested features**

- Add circuit simulation capabilities
- Include more microcontroller and automotive-related content
- Improve zooming and readability on certain screens
- Implement Kirchhoff's laws and node analysis tools


### Impedance Calculators

[App page](https://appshunter.io/ios/app/impedance-calculators/id1571901358)

This app provides 8 calculators for electrical impedance calculations. It covers various combinations of resistors, inductors, and capacitors in series and parallel circuits, offering formulas and circuit diagrams.

**Highlights:** Series impedance calculator, Parallel impedance calculator, R, L, & C circuit calculations, Includes formulas, Circuit diagrams provided, 8 distinct calculators

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


## Frequently asked questions

### Is EE ToolKit free?

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

### Is Impedance Calculators free?

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

### Which has better reviews, EE ToolKit or Impedance Calculators?

Impedance Calculators is rated higher. EE ToolKit averages 4.7 out of 5 from 1.4K ratings, while Impedance Calculators averages 5.0 from 12 ratings.

### Do EE ToolKit or Impedance Calculators have ads?

Impedance Calculators shows ads; EE ToolKit does not.

### Which is updated more often, EE ToolKit or Impedance Calculators?

EE ToolKit ships an update every 3 months, and Impedance Calculators every 21 months. Most recently, EE ToolKit was updated on September 23, 2026 and Impedance Calculators on August 30, 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.*