# iCircuit 3D vs BlueGrays

The clearest difference is price: BlueGrays at Free against iCircuit 3D's $12.99. BlueGrays also leads on update cadence (every 6 days vs every 31 months) and review sentiment (64% vs 41%). iCircuit 3D's advantage is in-app purchases (none vs 6) and ads (none vs shown).

BlueGrays is free to download; iCircuit 3D costs $12.99 up front. BlueGrays sells 6 in-app purchases, starting at $2.99 per month. iCircuit 3D asks for nothing beyond the download.

BlueGrays holds the better App Store score, 4.4 against 4.1. That said, the two scores are not equally well evidenced: iCircuit 3D has 72 ratings behind it against 11, so its average is the more settled of the two. Written reviews point the same way: 41% of iCircuit 3D's written reviews are positive against 64% of BlueGrays's.

iCircuit 3D ships an update every 31 months, BlueGrays every 6 days. The most recent releases landed on September 3, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | iCircuit 3D | BlueGrays |
| --- | --- | --- |
| Price | $12.99 | **Free** |
| Rating | [4.1 (72 ratings)](https://appshunter.io/ios/app/icircuit-3d/id1539977373/reviews) | **[4.4 (11 ratings)](https://appshunter.io/ios/app/bluegrays-learn-electronics/id6502332602/reviews)** |
| Number of ratings | **72** | 11 |
| Positive reviews | 40.8% of reviews | **64.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 31 months | **Every 6 days** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 134 MB | 51 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Krueger Systems, Inc.](https://appshunter.io/developer/299293363) | [Yunus Emre Eke](https://appshunter.io/developer/1713998736) |

## What reviewers say

### iCircuit 3D

[App page](https://appshunter.io/ios/app/icircuit-3d/id1539977373)

Design, build, and test electronic circuits in a realistic 3D environment. This app offers a virtual workbench with over 150 simulated parts and tools to experiment with circuits, diagnose issues, and visualize component behavior.

**Highlights:** 3D virtual workbench, Real-time circuit simulation, 150+ physically simulated parts, Realistic component behavior, Magic smoke failure simulation, Import custom 3D models, Symbolic component library

**Features:** Vision Pro support

**In-app purchases:** none


### BlueGrays

[App page](https://appshunter.io/ios/app/bluegrays-learn-electronics/id6502332602)

Learn electronics with interactive projects, a component catalog, and personal inventory management. Start with free projects and unlock full access to Arduino, ESP32, and IoT content with a premium subscription. Gamified learning with badges and levels keeps you motivated.

**Highlights:** Free starter projects, Unlimited Arduino/ESP32/IoT projects, Detailed circuit diagrams and code, Component catalog with specifications, Personal inventory management, Gamified learning with badges and levels, Multi-language support

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium (Monthly) | $2.99 | per month |
| Premium (Yearly) | $11.99 | per year |
| 5x Aylık Eğitimci Paketi | $12.99 | one-time |
| 10x Aylık Eğitimci Paketi | $23.99 | one-time |
| 5x Yıllık Eğitimci Paketi | $53.99 | one-time |
| 10x Yıllık Eğitimci Paketi | $101.99 | one-time |


## Frequently asked questions

### Is iCircuit 3D free?

iCircuit 3D costs $12.99, with no in-app purchases.

### Is BlueGrays free?

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

### Which has better reviews, iCircuit 3D or BlueGrays?

BlueGrays is rated higher. iCircuit 3D averages 4.1 out of 5 from 72 ratings, while BlueGrays averages 4.4 from 11 ratings.

### Do iCircuit 3D or BlueGrays have ads?

BlueGrays shows ads; iCircuit 3D does not.

### Which is updated more often, iCircuit 3D or BlueGrays?

iCircuit 3D ships an update every 31 months, and BlueGrays every 6 days. Most recently, iCircuit 3D was updated on September 3, 2026 and BlueGrays on September 17, 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.*