# 技能树 vs Java程序设计

The clearest difference is in-app purchases: 技能树 at none against Java程序设计's 1. 技能树 also leads on ads (none vs shown) and iOS requirement (8.0 vs 12.0). On price, update cadence 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. 技能树 asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on September 22, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | 技能树 | Java程序设计 |
| --- | --- | --- |
| 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 | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | — | Free with in-app purchases |
| Size | 70 MB | 8 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Beijing Grape Vine Information Technology Co., Ltd.](https://appshunter.io/developer/1118349562) | [宏斌 樊](https://appshunter.io/developer/1452129040) |

## What reviewers say

### 技能树

[App page](https://appshunter.io/ios/app/it/id1184126086)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is 技能树 free?

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

### Is Java程序设计 free?

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

### Do 技能树 or Java程序设计 have ads?

Java程序设计 shows ads; 技能树 does not.

### Which is updated more often, 技能树 or Java程序设计?

技能树 ships an update every 3 months, and Java程序设计 every 3 months. Most recently, 技能树 was updated on September 22, 2026 and Java程序设计 on September 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.*