Z2Y Java Principles vs 超尘
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Z2Y Java Principles
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Here, you can learn the principles of Java and its related knowledge for work, creation, and interviews, among other purposes. Use the system to track and manage your learning, and add notes at any time, making it easy to secure an offer. Future updates will include: adding local & online bookmarks, learning report statistics, learning plan reminders; the default knowledge base content will be continuously updated!!
超尘
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超尘是北京超尘脱俗科技有限公司开发的一款旨在帮助用户提升学习效率的工具产品。我们提供海量的学习资料和试题题库，方便用户查看和导出。
Screenshots
Verdict
The clearest difference is price: 超尘 at Free against Z2Y Java Principles's $1.99. 超尘 also leads on iOS requirement (13 vs 15.6). On update cadence, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
超尘 is free to download; Z2Y Java Principles costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Z2Y Java Principles ships an update every 5 days, 超尘 weekly. The most recent releases landed on November 4, 2026 and October 30, 2026 respectively.
| Parameter | Z2Y Java Principles | 超尘 |
|---|---|---|
| Price | $1.99 | Free — better |
| Update frequency | Every 5 days — better | Weekly |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 13 — better |
| Further details — not scored | ||
| Size | 257 MB | 190 MB |
| Age rating | 4+ | 4+ |
| Developer | 洁 欧阳 | 北京超尘脱俗科技有限公司 |
In-app purchases
Z2Y Java Principles
No in-app purchases
超尘
No in-app purchases
