# BlueGrays vs CoilPath

The clearest difference is rating: CoilPath at 5.0 against BlueGrays's 4.2. BlueGrays's advantage is ratings volume (14 vs 1). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. BlueGrays sells 8 in-app purchases, starting at $2.99 per month and CoilPath sells 4 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

CoilPath holds the better App Store score, 5.0 against 4.2. 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.

BlueGrays ships an update every 4 days, CoilPath every 2 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | BlueGrays | CoilPath |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (14 ratings)](https://appshunter.io/ios/app/bluegrays-arduino-projects/id6502332602/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/coilpath-control-circuits/id6819631707/reviews)** |
| Number of ratings | **14** | 1 |
| Positive reviews | 64.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 days | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 52 MB | 52 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Yunus Emre Eke](https://appshunter.io/developer/1713998736) | [AHMET BURAK SANLAV](https://appshunter.io/developer/6819631709) |

## 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 |


### CoilPath

[App page](https://appshunter.io/ios/app/coilpath-control-circuits/id6819631707)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CoilPath Pro Aylık | $3.99 | per month |
| CoilPath Pro 3 Aylık | $9.99 | per 3 months |
| CoilPath Pro 6 Aylık | $17.99 | per 6 months |
| CoilPath Pro Yıllık | $29.99 | per year |


## Frequently asked questions

### Is BlueGrays free?

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

### Is CoilPath free?

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

### Which has better reviews, BlueGrays or CoilPath?

CoilPath is rated higher. BlueGrays averages 4.2 out of 5 from 14 ratings, while CoilPath averages 5.0 from 1 ratings.

### Do BlueGrays or CoilPath have ads?

Neither BlueGrays nor CoilPath shows ads.

### Which is updated more often, BlueGrays or CoilPath?

BlueGrays ships an update every 4 days, and CoilPath every 2 days. Most recently, BlueGrays was updated on October 25, 2026 and CoilPath 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.*