CAJ转换器 vs 虚拟教研室新版
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CAJ转换器
Convert academic document formats like CAJ, NH, and KDH into clear PDF and Word files. Easily extract text, images, and tables, and convert other document types to PDF.
- Convert CAJ, NH, KDH to PDF and Word
- Extract text, images, and tables
- Convert PDF to Word, Excel, PPT, TXT, JPG, PNG
- Compress and encrypt PDF files
- Convert Word, Excel, PPT, TXT, images to PDF
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论文学术期刊文档阅读及转换器！ [CAJ转换] 支持caj/nh/kdh文件格式转成清晰的PDF及Word，可下载及复制文字； [CAJ处理] 支持caj/nh/kdh文件格式，转表格PPT图片文字等，支持提取图片等； [PDF转换] 支持PDF文件转Word、excel、ppt、txt、jpg、png等，支持压缩加密； [其它转PDF] 支持将Word、excel、ppt、txt、图片等转成PDF格式的文档。 会员订阅： 订阅价格为每年68元、每月28元 订阅会自动续订，除非在当前期间结束前至少24小时关闭自动续订；帐户将在当前期间结束前24小时内收取续订费用，并确定续订费用 订阅可以由用户管理，并且可以在购买后转到用户的AppStore帐户设置来关闭自动续订 隐私条款：https://shimo.im/docs/NJkbE4082eTjMQqR 使用条款：https://shimo.im/docs/WlArzxbQQJfzRnA2
虚拟教研室新版
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"虚拟教研室"系统旨在为高校教师提供跨专业、跨校、跨地域的教研交流平台，探索突破时空限制、高效便捷、形式多样、“线上+线下”结合的教师教研模式。依托“虚拟教研室”系统，教师在充分研究交流的基础上，可协同共建人才培养方案、教学大纲、知识图谱、教学视频、电子课件、习题试题、实训项目等教学资源，形成优质共享的教学资源库，并基于资源应用开展课程建设与教学活动。
Screenshots
Verdict
The clearest difference is in-app purchases: 虚拟教研室新版 at none against CAJ转换器's 3. 虚拟教研室新版 also leads on update cadence (weekly vs every 2 months). On price, ads, device support and iOS requirement 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
Both are free to download. CAJ转换器 sells 3 in-app purchases, starting at $3.99 per month. 虚拟教研室新版 asks for nothing beyond the download.
CAJ转换器 ships an update every 2 months, 虚拟教研室新版 weekly. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.
| Parameter | CAJ转换器 | 虚拟教研室新版 |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 20.0% of reviews | — |
| Update frequency | Every 2 months | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 11.0 — better | 12.4 |
| Further details — not scored | ||
| Size | 15 MB | 274 MB |
| Age rating | 4+ | 17+ |
| Developer | Beijing Chejiang Internet Technology Co., Ltd. | 北京中教仪科技有限公司 |
In-app purchases
CAJ转换器
- 月会员$3.991 Month
- 年会员$9.991 Year
- 永久会员$14.99
虚拟教研室新版
No in-app purchases
