# Pi AR vs BlueGrays

The clearest difference is rating: Pi AR at 5.0 against BlueGrays's 4.4. Pi AR also leads on in-app purchases (none vs 6) and ads (none vs shown). BlueGrays's advantage is ratings volume (11 vs 1). On price, review sentiment and device support there is nothing between them.

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

Pi AR holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: BlueGrays has 11 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 67% of Pi AR's written reviews are positive against 64% of BlueGrays's.

## The numbers

| Metric | Pi AR | BlueGrays |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pi-ar/id1377277323/reviews)** | [4.4 (11 ratings)](https://appshunter.io/ios/app/bluegrays-learn-electronics/id6502332602/reviews) |
| Number of ratings | 1 | **11** |
| Positive reviews | **66.7% of reviews** | 64.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Every 6 days |
| Monetization | **Free** | Free with in-app purchases |
| Size | 34 MB | 51 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [EOS Innovations LLC](https://appshunter.io/developer/1139605785) | [Yunus Emre Eke](https://appshunter.io/developer/1713998736) |

## What reviewers say

### Pi AR

[App page](https://appshunter.io/ios/app/pi-ar/id1377277323)

Explore the Raspberry Pi and circuits in augmented reality. This guide helps you set up your Pi and learn to build basic circuits, like blinking an LED. It's a hands-on way to understand electronics.

**Highlights:** Augmented reality Raspberry Pi exploration, Circuit building guide, LED blinking tutorial, Interactive learning experience, Educational companion

**Features:** macOS Compatibility, 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 Pi AR free?

Pi AR 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, Pi AR or BlueGrays?

Pi AR is rated higher. Pi AR averages 5.0 out of 5 from 1 ratings, while BlueGrays averages 4.4 from 11 ratings.

### Do Pi AR or BlueGrays have ads?

BlueGrays shows ads; Pi AR does not.

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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.*