# Arduino Programming Tutorial vs BlueGrays

The clearest difference is rating: BlueGrays at 4.2 against Arduino Programming Tutorial's 3.0. BlueGrays also leads on ads (none vs shown) and update cadence (every 5 days vs every 6 weeks). Arduino Programming Tutorial's advantage is in-app purchases (none vs 6). On price, device support and iOS requirement there is nothing between them.

Both are free to download. BlueGrays sells 6 in-app purchases, starting at $2.99 per month. Arduino Programming Tutorial asks for nothing beyond the download.

BlueGrays holds the better App Store score, 4.2 against 3.0. That said, the two scores are not equally well evidenced: BlueGrays has 14 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 45% of Arduino Programming Tutorial's written reviews are positive against 64% of BlueGrays's.

Arduino Programming Tutorial ships an update every 6 weeks, BlueGrays every 5 days. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Arduino Programming Tutorial | BlueGrays |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (1 ratings)](https://appshunter.io/ios/app/arduino-programming-tutorial/id6446804186/reviews) | **[4.2 (14 ratings)](https://appshunter.io/ios/app/bluegrays-arduino-projects/id6502332602/reviews)** |
| Number of ratings | 1 | **14** |
| Positive reviews | 45.5% of reviews | **64.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Every 5 days** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 44 MB | 52 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ALG Software Lab](https://appshunter.io/developer/1650561236) | [Yunus Emre Eke](https://appshunter.io/developer/1713998736) |

## What reviewers say

### Arduino Programming Tutorial

[App page](https://appshunter.io/ios/app/arduino-programming-tutorial/id6446804186)

Learn Arduino programming with over 200 lessons, circuit diagrams, and code examples. Covers electronics, components, and C++ essentials for beginners and advanced users. Available in 14 languages.

**Highlights:** 200+ practical lessons, Circuit diagrams and wiring guides, Ready-to-use code examples, Interactive quiz questions, Covers 14 languages, Detailed component explanations, C++ programming essentials

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

**In-app purchases:** none


### 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 (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 Arduino Programming Tutorial free?

Arduino Programming Tutorial is free to download, with no in-app purchases.

### Is BlueGrays free?

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

### Which has better reviews, Arduino Programming Tutorial or BlueGrays?

BlueGrays is rated higher. Arduino Programming Tutorial averages 3.0 out of 5 from 1 ratings, while BlueGrays averages 4.2 from 14 ratings.

### Do Arduino Programming Tutorial or BlueGrays have ads?

Arduino Programming Tutorial shows ads; BlueGrays does not.

### Which is updated more often, Arduino Programming Tutorial or BlueGrays?

Arduino Programming Tutorial ships an update every 6 weeks, and BlueGrays every 5 days. Most recently, Arduino Programming Tutorial was updated on October 23, 2026 and BlueGrays on October 24, 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.*