# BlueGrays vs Perfboard Lab

The clearest difference is update cadence: BlueGrays at every 4 days against Perfboard Lab's every 9 days. BlueGrays also leads on iOS requirement (15.1 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. BlueGrays sells 8 in-app purchases, starting at $2.99 per month and Perfboard Lab sells 1 in-app purchase, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

BlueGrays ships an update every 4 days, Perfboard Lab every 9 days. The most recent releases landed on October 25, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | BlueGrays | Perfboard Lab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (14 ratings)](https://appshunter.io/ios/app/bluegrays-arduino-projects/id6502332602/reviews)** | — |
| Number of ratings | **14** | — |
| Positive reviews | 64.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 9 days |
| Monetization | Free with in-app purchases | — |
| Size | 52 MB | 35 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Yunus Emre Eke](https://appshunter.io/developer/1713998736) | [Pascal Schroeer](https://appshunter.io/developer/6818318951) |

## What reviewers say

### BlueGrays

[App page](https://appshunter.io/ios/app/bluegrays-arduino-projects/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 (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium (Monthly) | $2.99 | per month |
| Premium (Monthly) | $4.99 | per month |
| Premium (Yearly) | $11.99 | per year |
| Premium (Yearly) | $19.99 | per year |
| 5x Aylık Eğitimci Paketi | $24.99 | one-time |
| 10x Aylık Eğitimci Paketi | $39.99 | one-time |
| 5x Yıllık Eğitimci Paketi | $99.99 | one-time |
| 10x Yıllık Eğitimci Paketi | $159.99 | one-time |


### Perfboard Lab

[App page](https://appshunter.io/ios/app/perfboard-lab/id6818318947)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Perfboard Lab Pro | $0.99 | per 7 days |


## Frequently asked questions

### Is BlueGrays free?

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

### Is Perfboard Lab free?

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

### Do BlueGrays or Perfboard Lab have ads?

Neither BlueGrays nor Perfboard Lab shows ads.

### Which is updated more often, BlueGrays or Perfboard Lab?

BlueGrays ships an update every 4 days, and Perfboard Lab every 9 days. Most recently, BlueGrays was updated on October 25, 2026 and Perfboard Lab 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.*