# Java程序设计 vs 码客南君

The clearest difference is in-app purchases: 码客南君 at none against Java程序设计's 1. 码客南君 also leads on ads (none vs shown) and update cadence (every 2 months vs every 3 months). On price and device support there is nothing between them.

Both are free to download. Java程序设计 sells 1 one-off in-app purchase. 码客南君 asks for nothing beyond the download.

Java程序设计 ships an update every 3 months, 码客南君 every 2 months. The most recent releases landed on June 1, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Java程序设计 | 码客南君 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/java/id1372576617/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free with in-app purchases | — |
| Size | 8 MB | 69 MB |
| Requires iOS | 12.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [宏斌 樊](https://appshunter.io/developer/1452129040) | [南君 李](https://appshunter.io/developer/1444834994) |

## What reviewers say

### Java程序设计

[App page](https://appshunter.io/ios/app/java/id1372576617)

This app provides comprehensive Java programming resources, including foundational concepts, object-oriented principles, advanced topics, practical code examples, and practice tests. It caters to learners at all stages of their Java journey with features like bookmarking, image zooming, and adjustable text sizes.

**Highlights:** Foundational and advanced Java programming materials, Practical code examples, Java testing questions, Bookmarking and last read position, Image zooming, Adjustable font sizes, Horizontal and vertical reading modes

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 去除广告插件 | $3.99 | one-time |


### 码客南君

[App page](https://appshunter.io/ios/app/id1517749296)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Java程序设计 free?

Java程序设计 is free to download, with in-app purchases available.

### Is 码客南君 free?

码客南君 is free to download, with no in-app purchases.

### Do Java程序设计 or 码客南君 have ads?

Java程序设计 shows ads; 码客南君 does not.

### Which is updated more often, Java程序设计 or 码客南君?

Java程序设计 ships an update every 3 months, and 码客南君 every 2 months. Most recently, Java程序设计 was updated on June 1, 2026 and 码客南君 on September 10, 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.*