# Workshop for NodeMCU vs BlueGrays

The clearest difference is ads: Workshop for NodeMCU at none against BlueGrays's shown. Workshop for NodeMCU also leads on iOS requirement (13.0 vs 15.1). BlueGrays's advantage is update cadence (every 6 days vs every 19 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Workshop for NodeMCU sells 10 one-off in-app purchases and BlueGrays sells 6 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Workshop for NodeMCU ships an update every 19 months, BlueGrays every 6 days. The most recent releases landed on September 24, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Workshop for NodeMCU | BlueGrays |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (11 ratings)](https://appshunter.io/ios/app/bluegrays-learn-electronics/id6502332602/reviews)** |
| Number of ratings | — | **11** |
| Positive reviews | — | 64.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 19 months | **Every 6 days** |
| Monetization | — | Free with in-app purchases |
| Size | 19 MB | 51 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Siu Yuen Ho](https://appshunter.io/developer/814088527) | [Yunus Emre Eke](https://appshunter.io/developer/1713998736) |

## What reviewers say

### Workshop for NodeMCU

[App page](https://appshunter.io/ios/app/workshop-for-nodemcu/id1643891852)

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 18b20 sensor | $1.99 | one-time |
| MPU6050 sensor | $1.99 | one-time |
| DHT11 sensor | $1.99 | one-time |
| BMP180 pressure sensor | $1.99 | one-time |
| Pulse sensor | $1.99 | one-time |
| Rotary encoder | $1.99 | one-time |
| Automation using Wifi | $3.99 | one-time |
| Automation (Google assistant) | $3.99 | one-time |
| Automation (shortcuts app) | $3.99 | one-time |
| Environment sensor IoT | $3.99 | one-time |


### 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 Workshop for NodeMCU free?

Workshop for NodeMCU is free to download, with in-app purchases available.

### Is BlueGrays free?

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

### Do Workshop for NodeMCU or BlueGrays have ads?

BlueGrays shows ads; Workshop for NodeMCU does not.

### Which is updated more often, Workshop for NodeMCU or BlueGrays?

Workshop for NodeMCU ships an update every 19 months, and BlueGrays every 6 days. Most recently, Workshop for NodeMCU 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.*