# Learn C Programming Guide vs Sudokube 3D

The clearest difference is price: Sudokube 3D at Free against Learn C Programming Guide's $1.99. Sudokube 3D also leads on update cadence (every 5 days vs every 23 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Sudokube 3D is free to download; Learn C Programming Guide costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Learn C Programming Guide ships an update every 23 months, Sudokube 3D every 5 days. The most recent releases landed on October 6, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Learn C Programming Guide | Sudokube 3D |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/learn-c-programming-guide/id6443463387/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 23 months | **Every 5 days** |
| Monetization | Paid | — |
| Size | 36 MB | 10 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | +4 |
| Developer | [Muhammad Mubeen](https://appshunter.io/developer/1553722821) | [小健 赵](https://appshunter.io/developer/1521832312) |

## What reviewers say

### Learn C Programming Guide

[App page](https://appshunter.io/ios/app/learn-c-programming-guide/id6443463387)

Master C programming with this comprehensive app. It offers tutorials, lessons, programs, and Q&A to help you learn the basics or become an expert. Ideal for interview preparation and brushing up coding skills.

**Highlights:** C Programming Tutorial, Programming Lessons, Code Programs, Questions & Answers, Interview Preparation, Brush up coding skills

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

**In-app purchases:** none


### Sudokube 3D

[App page](https://appshunter.io/ios/app/sudokube-3d/id6479182193)

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

**In-app purchases:** none


## Frequently asked questions

### Is Learn C Programming Guide free?

Learn C Programming Guide costs $1.99, with no in-app purchases.

### Is Sudokube 3D free?

Sudokube 3D is free to download, with no in-app purchases.

### Do Learn C Programming Guide or Sudokube 3D have ads?

Neither Learn C Programming Guide nor Sudokube 3D shows ads.

### Which is updated more often, Learn C Programming Guide or Sudokube 3D?

Learn C Programming Guide ships an update every 23 months, and Sudokube 3D every 5 days. Most recently, Learn C Programming Guide was updated on October 6, 2026 and Sudokube 3D on September 30, 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.*