# EE ToolKit vs Control Systems Engineering

The clearest difference is device support: EE ToolKit at 3 against Control Systems Engineering's 1. EE ToolKit also leads on iOS requirement (12.0 vs 17.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. EE ToolKit sells 1 one-off in-app purchase and Control Systems Engineering sells 6 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 12, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | EE ToolKit | Control Systems Engineering |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (1.4K ratings)](https://appshunter.io/ios/app/ee-toolkit/id391792609/reviews)** | — |
| Number of ratings | **1.4K** | — |
| Positive reviews | 90.2% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Size | 289 MB | 18 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Thomas Gruber](https://appshunter.io/developer/342699861) | [Forwa Elade Wunde](https://appshunter.io/developer/1685241344) |

## 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


### Control Systems Engineering

[App page](https://appshunter.io/ios/app/control-systems-engineering/id6739731886)

**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 ToolKit free?

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

### Is Control Systems Engineering free?

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

### Do EE ToolKit or Control Systems Engineering have ads?

Neither EE ToolKit nor Control Systems Engineering shows ads.

### Which is updated more often, EE ToolKit or Control Systems Engineering?

EE ToolKit ships an update every 3 months, and Control Systems Engineering every 3 months. Most recently, EE ToolKit was updated on October 12, 2026 and Control Systems Engineering on October 2, 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.*