# Arduino Programming Pro vs BlueGrays

The clearest difference is price: BlueGrays at Free against Arduino Programming Pro's $4.99. BlueGrays also leads on update cadence (every 6 days vs every 6 weeks). Arduino Programming Pro's advantage is in-app purchases (none vs 6) and ads (none vs shown). On review sentiment, ratings volume, device support and iOS requirement there is nothing between them.

BlueGrays is free to download; Arduino Programming Pro costs $4.99 up front. BlueGrays sells 6 in-app purchases, starting at $2.99 per month. Arduino Programming Pro asks for nothing beyond the download.

Arduino Programming Pro holds the better App Store score, 4.6 against 4.4. Both are backed by a comparable volume of ratings — 5 and 11 respectively. Written reviews point the same way: 71% of Arduino Programming Pro's written reviews are positive against 64% of BlueGrays's.

Arduino Programming Pro ships an update every 6 weeks, BlueGrays every 6 days. The most recent releases landed on September 24, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Arduino Programming Pro | BlueGrays |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[4.6 (5 ratings)](https://appshunter.io/ios/app/arduino-programming-pro/id6447102673/reviews)** | [4.4 (11 ratings)](https://appshunter.io/ios/app/bluegrays-learn-electronics/id6502332602/reviews) |
| Number of ratings | 5 | **11** |
| Positive reviews | **71.4% of reviews** | 64.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 weeks | **Every 6 days** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 45 MB | 51 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | **iPhone, iPad, Mac** | 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 Pro

[App page](https://appshunter.io/ios/app/arduino-programming-pro/id6447102673)

Master Arduino programming with over 200 practical lessons, circuit diagrams, and code examples. This app guides beginners and experienced users through electronics and project building in 14 languages. The Pro version offers advanced features for enhanced learning.

**Highlights:** 200+ practical lessons, Circuit diagrams and wiring guides, Ready-to-use code examples, Interactive quiz questions, Support for 14 languages, Full-text search (Pro version), Favorites for saving topics (Pro version)

**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 Arduino Programming Pro free?

Arduino Programming Pro costs $4.99, with no in-app purchases.

### Is BlueGrays free?

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

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

Arduino Programming Pro is rated higher. Arduino Programming Pro averages 4.6 out of 5 from 5 ratings, while BlueGrays averages 4.4 from 11 ratings.

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

BlueGrays shows ads; Arduino Programming Pro does not.

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

Arduino Programming Pro ships an update every 6 weeks, and BlueGrays every 6 days. Most recently, Arduino Programming Pro was updated on September 24, 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.*