# EE ToolKit vs Circuit Simulator

EE ToolKit and Circuit Simulator both sit at 4.7 stars, but that hides the real split: 90% of EE ToolKit's written reviews are positive against 73% of Circuit Simulator's. EE ToolKit also leads on ratings volume (1.4K vs 72) and iOS requirement (12.0 vs 15.3). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. EE ToolKit sells 1 one-off in-app purchase and Circuit Simulator sells 8 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.7 for EE ToolKit against 4.7 for Circuit Simulator. That said, the two scores are not equally well evidenced: EE ToolKit has 1.4K ratings behind it against 72, so its average is the more settled of the two. Written reviews are what separate them: 90% of EE ToolKit's written reviews are positive against 73% of Circuit Simulator's.

EE ToolKit ships an update every 3 months, Circuit Simulator every 6 weeks. The most recent releases landed on September 23, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | EE ToolKit | Circuit Simulator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (1.4K ratings)](https://appshunter.io/ios/app/ee-toolkit/id391792609/reviews) | [4.7 (72 ratings)](https://appshunter.io/ios/app/circuit-simulator-voltsim/id6736870364/reviews) |
| Number of ratings | **1.4K** | 72 |
| Positive reviews | **90.2% of reviews** | 72.7% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 289 MB | 103 MB |
| Requires iOS | **12.0** | 15.3 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Thomas Gruber](https://appshunter.io/developer/342699861) | [Sindhu Gopi](https://appshunter.io/developer/1773585161) |

## 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


### Circuit Simulator

[App page](https://appshunter.io/ios/app/circuit-simulator-voltsim/id6736870364)

Design and simulate electronic and digital circuits in real-time. Visualize voltage and current flow, and analyze circuit behavior with tools like oscilloscopes and multimeters. Offers a user-friendly experience for circuit design and digital electronic analysis.

**Highlights:** Real-time electronic circuit simulation, Digital circuit simulation, Voltage and current analysis, Multichannel oscilloscope, Multimeter tools, Circuit design and tuning

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Extensions Subscription | $0.99 | per month |
| Sensors Extension | $0.99 | one-time |
| Custom Chips Extension | $1.99 | one-time |
| Instruments extension | $2.99 | one-time |
| Analog Extension | $3.99 | one-time |
| Misc Extension | $3.99 | one-time |
| Digital Extension | $3.99 | one-time |
| Extension Pack | $12.99 | one-time |


## Frequently asked questions

### Is EE ToolKit free?

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

### Is Circuit Simulator free?

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

### Which has better reviews, EE ToolKit or Circuit Simulator?

EE ToolKit and Circuit Simulator are both rated 4.7 out of 5 on the App Store, from 1.4K and 72 ratings respectively.

### Do EE ToolKit or Circuit Simulator have ads?

Neither EE ToolKit nor Circuit Simulator shows ads.

### Which is updated more often, EE ToolKit or Circuit Simulator?

EE ToolKit ships an update every 3 months, and Circuit Simulator every 6 weeks. Most recently, EE ToolKit was updated on September 23, 2026 and Circuit Simulator on September 20, 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.*