Comparison

ivySCI vs CAJ文献阅读器

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

ivySCI

This app helps researchers manage and read scientific papers efficiently. It automatically extracts metadata, offers AI-assisted reading and proofreading, and allows for easy note-taking and citation integration with word processors.

Highlights
  • Automatic PDF metadata identification
  • AI-assisted reading and Q&A
  • Built-in translation and dictionary
  • Reference extraction and download
  • Image extraction and side-by-side viewing
  • Cloud-synced notes across devices
  • Word processor citation plugin
Features
Read full description

ivySCI is dedicated to providing thoughtful and intelligent literature reading and management tools for researchers, helping them save valuable time and focus more effectively on their research, rather than getting bogged down in time-consuming literature management, especially the tedious task of formatting references for graduate theses. As your helpful assistant, ivySCI offers a comprehensive range of services from the outset, including: 1. After you import PDF documents, we automatically identify the metadata of each paper, including titles, authors, abstracts, DOIs, journals, and important journal impact factors (CiteScore). 2. For each document, we provide built-in translation and dictionary lookup to overcome language barriers. 3. We offer AI-assisted reading for each document, providing quick answers to your questions. In the Mac version, we also provide AI proofreading and translation functions. 4. We analyze each document so that you can access references directly when needed, without flipping to the end of the paper. After viewing the references, you can decide whether to download them. You can customize the download engine to provide more channels to help you find the required literature faster. 5. We extract images from papers and provide side-by-side text and image viewing when necessary. You can zoom in or out on images to focus on specific details. 6. We analyze the PDF structure and present it in an outline format. Thumbnails are also available for viewing. 7. You can create notes on any device, and these notes are shared via the cloud for easy access anytime, anywhere. 8. Your literature and notes are associated with your account, so you can use them on any device (including iPhone, iPad, and Mac) after logging in. 9. When writing in Word or WPS, you can cite literature and notes at any time using the ivyCite plugin provided by ivySCI. This ensures that your thought process remains uninterrupted. ivySCI offers various client options tailored to research needs, including Mac and PC, iPad, and iPhone. Each device serves a different purpose, with desktop versions offering comprehensive management capabilities, iPad versions focused on reading and basic operations, and iPhone versions providing basic information access. Depending on the intelligence analysis capabilities and the limitations of different PDF formats, some features may not be available, but we continuously optimize the engine.

About

CAJ文献阅读器

This app allows you to easily read and convert CAJ, NH, and KDH document formats, commonly used for academic papers from Chinese academic databases. It supports converting these files to PDF or Word, with OCR capabilities for text extraction from scanned images. You can also import files from messaging apps and manage your reading history.

Highlights
  • Read CAJ, NH, KDH formats
  • Convert CAJ to PDF
  • Convert CAJ to Word
  • OCR text recognition
  • Import from messaging apps
  • Reading history management
Features
Read full description

CAJ文献阅读器可以轻松实现论文文献格式的阅读与转换! 什么是CAJ?如何阅读这种格式呢? CAJ是中国期刊网学术文献的专用文献格式。青藤CAJ阅读器支持从知网等网站下载的CAJ、NH、KDH等格式文件的阅读与转换。 它可以轻松阅读各种论文格式的文件。当撰写时需要引用论文文献时,本软件可以自动文字识别进行复制,即使原始论文中是扫描的图片也可以轻松识别! 软件特点: 1. CAJ格式转PDF: 将CNKI知网等CAJ文件转成PDF后可立刻阅读,可以保持原有格式与质量,大部分可以复制文字。 2. CAJ格式转Word: 转成Word文件,可以高质量地转成Office文档,可以保证所有内容文字可以复制与编辑。 3. 各种论文格式在线离线阅读 支持CAJ、NH、KDH格式文件的在线与离线阅读。 4. 方便外部CAJ文件的搜索与导入 支持从微信QQ等软件导入文件,如果授予设备存储权限,可以搜索本机的文献格式文件,点击即可转换与阅读。 5. 支持阅读记录的收藏 阅读过的论文文献文件可以实时查看,可以随时找到并管理阅读过的文件。 如果您选择购买VIP会员资格,将向您的iTunes帐户支付费用,并且您的帐户将在本期结束前24小时内支付续费。购买后,您可以随时通过在iTunes商店中的设置关闭自动续订。价格以人民币为单位,在中国以外的国家可能会有所不同,如有更改,恕不另行通知。 隐私政策: https://www.zkmeitian.com/page/privacy/qtcajreader 使用协议: https://www.zkmeitian.com/page/agreement/qtcajreader

Screenshots

ivySCI4 screens
CAJ文献阅读器4 screens

Verdict

The call

The clearest difference is update cadence: ivySCI at fortnightly against CAJ文献阅读器's every 4 months. ivySCI also leads on review sentiment (80% vs 65%). CAJ文献阅读器's advantage is iOS requirement (12.0 vs 15.5). On price, ads, in-app purchases and monetization model 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. ivySCI sells 3 in-app purchases, starting at $2.99 per month and CAJ文献阅读器 sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

ivySCI ships an update fortnightly, CAJ文献阅读器 every 4 months. The most recent releases landed on September 10, 2026 and September 16, 2026 respectively.

Scorecard3 real differences · 7 level
ivySCI versus CAJ文献阅读器: the parameters behind the verdict, then further details
ParameterivySCICAJ文献阅读器
PriceFreeFree
Rating4.6 (9 ratings) — better—
Positive reviews80.0% of reviews — better65.0% of reviews
Number of ratings9 — better—
Update frequencyFortnightly — betterEvery 4 months
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFreemium
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.512.0 — better
Further details — not scored
Size74 MB53 MB
Age rating4+4+
DeveloperNanjing IvyScience Information Technology Co., Ltd.Meitian Trading

Customer experience

ivySCI

All ratings9 ratings
Positive88.9%
Neutral11.1%
Negative0.0%
Written reviews5 reviews
Positive80.0%
Neutral20.0%
Negative0.0%

CAJ文献阅读器

Written reviews20 reviews
Positive65.0%
Neutral5.0%
Negative30.0%

In-app purchases

3 purchases

ivySCI

Subscriptions3
  • ivySCI VIP Monthly Service$2.991 Month
  • Annual VIP Subscription$29.991 Year
  • Annual AI Pro Subscription$39.991 Year
3 purchases

CAJ文献阅读器

Subscriptions3
  • 月会员$2.991 Month
  • 季会员$4.993 Months
  • 年会员$7.991 Year

Questions

Is ivySCI free?
ivySCI is free to download, with in-app purchases available.
Is CAJ文献阅读器 free?
CAJ文献阅读器 is free to download, with in-app purchases available.
Do ivySCI or CAJ文献阅读器 have ads?
Neither ivySCI nor CAJ文献阅读器 shows ads.
Which is updated more often, ivySCI or CAJ文献阅读器?
ivySCI ships an update fortnightly, and CAJ文献阅读器 every 4 months. Most recently, ivySCI was updated on September 10, 2026 and CAJ文献阅读器 on September 16, 2026.

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