# 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 4 days vs every 6 weeks). Arduino Programming Tutorial's advantage is in-app purchases (none vs 10). On price, device support and iOS requirement there is nothing between them.

Both are free to download. BlueGrays sells 10 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 4 days. The most recent releases landed on November 3, 2026 and November 4, 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-and-esp32/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 4 days** |
| Monetization | **Ad-supported** | Freemium |
| Size | 44 MB | 56 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ALG Software Lab SIA](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-and-esp32/id6502332602)

This app provides over 160 hands-on projects for Arduino, ESP32, and Raspberry Pi Pico, complete with code, diagrams, and video guides. It helps users discover projects based on the parts they own and offers a suite of electronics tools and component guides.

**Highlights:** 160+ microcontroller projects, Ready-to-upload code, Circuit diagrams and video walkthroughs, Project discovery based on owned parts, 125+ component guides, 18 electronics calculators, Pinout maps for popular boards

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium (Monthly) | $2.99 | per month |
| Premium (Yearly) | $11.99 | per year |
| Premium (Yearly) | $19.99 | per year |
| Lifetime Premium · Special | $49.99 | one-time |
| Lifetime Premium | $79.99 | one-time |
| 50x Monthly Educator Pack | $219.99 | one-time |
| 5x Lifetime Educator Pack | $399.99 | one-time |
| 10x Lifetime Educator Pack | $749.99 | one-time |
| 50x Yearly Educator Pack | $889.99 | one-time |
| 50x Lifetime Educator Pack | $949.99 | 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 4 days. Most recently, Arduino Programming Tutorial was updated on November 3, 2026 and BlueGrays on November 4, 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.*