# Circuitry vs Chemical Engineering+

The clearest difference is review sentiment: Circuitry at 51% against Chemical Engineering+'s 0%. Circuitry also leads on rating (3.9 vs 3.0) and in-app purchases (none vs 6). Chemical Engineering+'s advantage is update cadence (every 2 months vs every 4 months). On price, ads and device support there is nothing between them.

Both are free to download. Chemical Engineering+ sells 6 in-app purchases, starting at $9.99 per month. Circuitry asks for nothing beyond the download.

Circuitry holds the better App Store score, 3.9 against 3.0. That said, the two scores are not equally well evidenced: Circuitry has 156 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 51% of Circuitry's written reviews are positive against 0% of Chemical Engineering+'s.

Circuitry ships an update every 4 months, Chemical Engineering+ every 2 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Circuitry | Chemical Engineering+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (156 ratings)](https://appshunter.io/ios/app/circuitry-3d-circuit-builder/id1476733898/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/chemical-engineering-plus/id6740001145/reviews) |
| Number of ratings | **156** | 2 |
| Positive reviews | **51.4% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 35 MB | 18 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Raffael Kaehn](https://appshunter.io/developer/1234032836) | [Forwa Elade Wunde](https://appshunter.io/developer/1685241344) |

## What reviewers say

### Circuitry

[App page](https://appshunter.io/ios/app/circuitry-3d-circuit-builder/id1476733898)

Build and simulate electronic circuits in an intuitive 3D environment. This app offers lightning-fast analysis and a user-friendly interface, making complex engineering accessible. Circuits are saved as documents for easy sharing and management across devices.

**Highlights:** 3D circuit building, GPU-accelerated analysis, Intuitive 3D interface, Document-based circuit files, Component placement and connection, Resistor, voltage source, light bulb components

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 💡 Cool game idea
- 👍 Nice and 3D interface
- 🚀 Easy to use and perfect 3D
- 👍 Fun and simple
- 👍 Beautifully visual and interactive

**What reviewers complain about**

- 😞 Missing many components
- 😞 Limited functionality
- 😞 Not useful for professional work
- 😞 Inaccurate electrical simulation
- 😞 App is broken/crashes

**Reported bugs**

- App crashes on launch
- App doesn't work after download
- Blank white screen on opening
- App won't open, only shows a folder
- Lights won't turn on

**Requested features**

- Add more components (diodes, transistors, capacitors, inductors, speakers, microphones, resistors, switches, LEDs, displays, transformers)
- Add labels/names for components
- Add intensity and voltage for cables
- Add undo/redo buttons
- Add tutorials or guidance videos


### Chemical Engineering+

[App page](https://appshunter.io/ios/app/chemical-engineering-plus/id6740001145)

Test your knowledge of chemical engineering with a comprehensive quiz app. It offers thousands of questions across various topics, adaptive difficulty, and detailed explanations to enhance learning. Prepare for exams and boost your industry skills with this interactive tool.

**Highlights:** Extensive question bank, Topic-specific quizzes, Calculations & problem solving, Adaptive difficulty, Interactive learning with explanations, Offline play, Leaderboard competition

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

**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 Circuitry free?

Circuitry is free to download, with no in-app purchases.

### Is Chemical Engineering+ free?

Chemical Engineering+ is free to download, with in-app purchases available.

### Which has better reviews, Circuitry or Chemical Engineering+?

Circuitry is rated higher. Circuitry averages 3.9 out of 5 from 156 ratings, while Chemical Engineering+ averages 3.0 from 2 ratings.

### Do Circuitry or Chemical Engineering+ have ads?

Neither Circuitry nor Chemical Engineering+ shows ads.

### Which is updated more often, Circuitry or Chemical Engineering+?

Circuitry ships an update every 4 months, and Chemical Engineering+ every 2 months. Most recently, Circuitry was updated on November 3, 2026 and Chemical Engineering+ on October 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.*