# EE ToolKit PRO vs Calctronics

The clearest difference is review sentiment: EE ToolKit PRO at 90% against Calctronics's 14%. EE ToolKit PRO also leads on rating (4.9 vs 4.0) and in-app purchases (none vs 1). Calctronics's advantage is price (Free vs $9.99). On update cadence, device support and iOS requirement there is nothing between them.

Calctronics is free to download; EE ToolKit PRO costs $9.99 up front. Calctronics sells 1 one-off in-app purchase. EE ToolKit PRO asks for nothing beyond the download.

EE ToolKit PRO holds the better App Store score, 4.9 against 4.0. That said, the two scores are not equally well evidenced: EE ToolKit PRO has 293 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 90% of EE ToolKit PRO's written reviews are positive against 14% of Calctronics's.

EE ToolKit PRO ships an update every 3 months, Calctronics every 2 months. The most recent releases landed on September 21, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | EE ToolKit PRO | Calctronics |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | **[4.9 (293 ratings)](https://appshunter.io/ios/app/ee-toolkit-pro/id368780426/reviews)** | [4.0 (5 ratings)](https://appshunter.io/ios/app/calctronics-circuit-calc/id1583972990/reviews) |
| Number of ratings | **293** | 5 |
| Positive reviews | **89.6% of reviews** | 14.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Paid | **Free** |
| Size | 289 MB | 35 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Thomas Gruber](https://appshunter.io/developer/342699861) | [Anas Abubakar](https://appshunter.io/developer/1581534101) |

## What reviewers say

### EE ToolKit PRO

[App page](https://appshunter.io/ios/app/ee-toolkit-pro/id368780426)

This comprehensive toolkit offers over 160 electronic applications, calculators, and reference sections for electronics engineers, students, and hobbyists. It includes features like a multi-functional keyboard, color code tools, audio scope, and circuit simulations, with ongoing improvements and updates.

**Highlights:** Over 160 electronic applications, Multi-functional keyboard, Color code and SMD code tools, Audio scope and frequency generator, Component reference section with datasheets, 555 Timer tools, PCB trace impedance calculators, Real-time circuit simulations

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Top-notch tool
- 👍 Extremely helpful
- 🔥 Invaluable for electronics work
- 💯 Excellent app
- 🔍 Comprehensive reference

**What reviewers complain about**

- 🐛 Occasional crashes or bugs
- 🔍 UI could be more intuitive
- 📱 Some features not optimized for mobile
- 🔢 Limited functionality for advanced users

**Reported bugs**

- 7400 routine causes app to close
- Resistor value calculation issues
- Compatibility problems with newer iOS versions

**Requested features**

- Add support for vacuum tubes
- Implement logarithmic frequency sweep
- Include more component pinout information
- Integrate a circuit builder/simulator
- Add DB to RMS and peak-to-peak conversion


### Calctronics

[App page](https://appshunter.io/ios/app/calctronics-circuit-calc/id1583972990)

This app provides a comprehensive suite of calculators and design tools for electronic engineering. It assists with circuit design, filter analysis, and component calculations for resistors, capacitors, and inductors. Ideal for both professionals and students, it simplifies complex electronic projects.

**Highlights:** Comprehensive calculator collection, Filter design with graph plotting, Resistor, transistor, capacitor design tools, Amplifier and inductor design, Circuit analysis and design, Offline functionality

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade to the Pro version | $2.99 | one-time |


## Frequently asked questions

### Is EE ToolKit PRO free?

EE ToolKit PRO costs $9.99, with no in-app purchases.

### Is Calctronics free?

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

### Which has better reviews, EE ToolKit PRO or Calctronics?

EE ToolKit PRO is rated higher. EE ToolKit PRO averages 4.9 out of 5 from 293 ratings, while Calctronics averages 4.0 from 5 ratings.

### Do EE ToolKit PRO or Calctronics have ads?

Calctronics shows ads; EE ToolKit PRO does not.

### Which is updated more often, EE ToolKit PRO or Calctronics?

EE ToolKit PRO ships an update every 3 months, and Calctronics every 2 months. Most recently, EE ToolKit PRO was updated on September 21, 2026 and Calctronics on September 9, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*