# EE ToolKit vs Arduino Science Journal

The clearest difference is review sentiment: EE ToolKit at 90% against Arduino Science Journal's 59%. EE ToolKit also leads on rating (4.7 vs 4.4) and iOS requirement (12.0 vs 15.1). Arduino Science Journal's advantage is monetization model (free vs free with in-app purchases). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. EE ToolKit sells 1 one-off in-app purchase and Arduino Science Journal sells 2 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

EE ToolKit holds the better App Store score, 4.7 against 4.4. Both are backed by a comparable volume of ratings — 1.4K and 1.1K respectively. Written reviews point the same way: 90% of EE ToolKit's written reviews are positive against 59% of Arduino Science Journal's.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on November 1, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | EE ToolKit | Arduino Science Journal |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (1.4K ratings)](https://appshunter.io/ios/app/ee-toolkit/id391792609/reviews)** | [4.4 (1.1K ratings)](https://appshunter.io/ios/app/arduino-science-journal/id1518014927/reviews) |
| Number of ratings | **1.4K** | 1.1K |
| Positive reviews | **90.2% of reviews** | 58.7% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 289 MB | 58 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Thomas Gruber](https://appshunter.io/developer/342699861) | [Arduino LLC](https://appshunter.io/developer/1599571672) |

## 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


### Arduino Science Journal

[App page](https://appshunter.io/ios/app/arduino-science-journal/id1518014927)

Transform your smartphone into a science notebook. Use your device's sensors and connect external hardware to gather real-time data, conduct experiments, and analyze findings. Ideal for students to explore the world scientifically.

**Highlights:** Use smartphone sensors, Connect external Arduino sensors, Record and analyze real-time data, Conduct interactive experiments, Enhance lesson plans, Cross-platform support

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Teacher Monthly Plan | $7.99 | per month |
| Yearly Teacher Plan | $63.99 | per year |

**What reviewers like**

- 👍 Simple and inspiring
- 🚀 Engaging science experience
- 🤩 Turned user into a true scientist
- 🤖 Good introduction to conducting experiments

**What reviewers complain about**

- 🐛 Keeps crashing
- 🐛 Blank screen issues
- 🐛 Sensors disappear or don't work
- 🤯 Overly complex and poor execution

**Reported bugs**

- App often crashes when trying to add sensors
- Sensor selection menu doesn't work
- Freezes on loading dashboards with blank screen
- Stopped working after iOS 15 update

**Requested features**

- iCloud sync
- CSV export for data analysis
- Velocity sensors using GPS
- Arduino sensor integration
- Buzzer with variable range


## Frequently asked questions

### Is EE ToolKit free?

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

### Is Arduino Science Journal free?

Arduino Science Journal is free to download, with in-app purchases available.

### Which has better reviews, EE ToolKit or Arduino Science Journal?

EE ToolKit is rated higher. EE ToolKit averages 4.7 out of 5 from 1.4K ratings, while Arduino Science Journal averages 4.4 from 1.1K ratings.

### Do EE ToolKit or Arduino Science Journal have ads?

Neither EE ToolKit nor Arduino Science Journal shows ads.

### Which is updated more often, EE ToolKit or Arduino Science Journal?

EE ToolKit ships an update every 3 months, and Arduino Science Journal every 3 months. Most recently, EE ToolKit was updated on November 1, 2026 and Arduino Science Journal on October 29, 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.*