# Arduino Pocket Reference vs Learn C Language

The clearest difference is in-app purchases: Learn C Language at none against Arduino Pocket Reference's 1. Arduino Pocket Reference's advantage is review sentiment (12% vs 0%) and iOS requirement (14.0 vs 16.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Arduino Pocket Reference sells 1 one-off in-app purchase. Learn C Language asks for nothing beyond the download.

Arduino Pocket Reference ships an update every 5 months, Learn C Language every 3 months. The most recent releases landed on June 2, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Arduino Pocket Reference | Learn C Language |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.4 (17 ratings)](https://appshunter.io/ios/app/arduino-pocket-reference/id969849288/reviews)** | — |
| Number of ratings | **17** | — |
| Positive reviews | **12.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 5 months | **Every 3 months** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 78 MB | 14 MB |
| Requires iOS | **14.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Vipin Nair](https://appshunter.io/developer/841810400) | [ALG Software Lab](https://appshunter.io/developer/1650561236) |

## What reviewers say

### Arduino Pocket Reference

[App page](https://appshunter.io/ios/app/arduino-pocket-reference/id969849288)

This app provides a comprehensive reference for Arduino programming, covering core libraries, syntax, operators, and various hardware shields. It includes examples for common functionalities like mouse control, GSM communication, and LCD displays, making it a valuable tool for makers and developers.

**Highlights:** Arduino core libraries list, Mouse and Keyboard control examples, GSM communication examples, LiquidCrystal library functions, Syntax, operators, and data types, Various Arduino board guides, IO and math functions

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Advertisements | $0.99 | one-time |


### Learn C Language

[App page](https://appshunter.io/ios/app/learn-c-language/id6444024951)

Master C programming with this beginner-friendly app. It offers structured lessons, real-world code examples, and over 250 interactive quiz questions to reinforce learning. Study in one of seven languages and progress from basic to advanced concepts.

**Highlights:** Beginner-friendly C programming lessons, Real-world code examples, Interactive quiz system with 250+ questions, Available in 7 languages, Covers advanced C concepts, Progress tracking

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

**In-app purchases:** none


## Frequently asked questions

### Is Arduino Pocket Reference free?

Arduino Pocket Reference is free to download, with in-app purchases available.

### Is Learn C Language free?

Learn C Language is free to download, with no in-app purchases.

### Do Arduino Pocket Reference or Learn C Language have ads?

Both Arduino Pocket Reference and Learn C Language show ads.

### Which is updated more often, Arduino Pocket Reference or Learn C Language?

Arduino Pocket Reference ships an update every 5 months, and Learn C Language every 3 months. Most recently, Arduino Pocket Reference was updated on June 2, 2026 and Learn C Language on September 16, 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.*