# CRK vs Learn Electronics & Arduino

The clearest difference is in-app purchases: CRK at none against Learn Electronics & Arduino's 2. CRK also leads on ads (none vs shown). Learn Electronics & Arduino's advantage is update cadence (every 6 days vs monthly). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Learn Electronics & Arduino sells 2 in-app purchases, starting at $4.99 per month. CRK asks for nothing beyond the download.

CRK ships an update monthly, Learn Electronics & Arduino every 6 days. The most recent releases landed on October 10, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | CRK | Learn Electronics & Arduino |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (6 ratings)](https://appshunter.io/ios/app/learn-electronics-and-arduino/id6786012093/reviews)** |
| Number of ratings | — | **6** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 6 days** |
| Monetization | — | Free with in-app purchases |
| Size | 234 MB | 71 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Krismar Computacion Toluca, S. de R.L. de C.V.](https://appshunter.io/developer/1747420495) | [MEHMET CANKER (TR)](https://appshunter.io/developer/1565350155) |

## What reviewers say

### CRK

[App page](https://appshunter.io/ios/app/crk/id6502923869)

**Features:** macOS Compatibility

**In-app purchases:** none


### Learn Electronics & Arduino

[App page](https://appshunter.io/ios/app/learn-electronics-and-arduino/id6786012093)

Learn electronics and Arduino programming through interactive lessons and simulations on your phone. Build real projects with no prior experience or hardware needed. Covers fundamentals to advanced projects with guided labs and quizzes.

**Highlights:** Interactive 3D circuit simulations, Built-in Arduino sketch editor and interpreter, 124 lessons across 4 learning worlds, 52 hands-on guided labs, Offline functionality, Multi-language support

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Electronics Pro - Monthly | $4.99 | per month |
| Electronics Pro - Yearly | $14.99 | per year |


## Frequently asked questions

### Is CRK free?

CRK is free to download, with no in-app purchases.

### Is Learn Electronics & Arduino free?

Learn Electronics & Arduino is free to download, with in-app purchases available.

### Do CRK or Learn Electronics & Arduino have ads?

Learn Electronics & Arduino shows ads; CRK does not.

### Which is updated more often, CRK or Learn Electronics & Arduino?

CRK ships an update monthly, and Learn Electronics & Arduino every 6 days. Most recently, CRK was updated on October 10, 2026 and Learn Electronics & Arduino on October 28, 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.*