Comparison

KingDrawHD vs CNKI EXPRESS

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

Head to head
About

KingDrawHD

This app is a professional chemical drawing editor for sketching molecules, reactions, and organic chemistry pathways. It offers features like real-time 3D modeling, IUPAC name conversion, and intelligent gesture drawing. The app supports multi-terminal synchronization and saving files in various common chemical drawing formats.

Highlights
  • Real-time 3D modeling
  • IUPAC name to structure conversion
  • Structural formula searching
  • Intelligent gesture drawing
  • Multi-terminal synchronization
  • Multi-format file saving
Features
Read full description

KingDraw is a chemical drawing editor that allows users to sketch molecules and reactions as well as organic chemistry objects and pathways.A good idea can change the world. KingDraw will record all your inspirations. Just enjoy creation. KingDraw, professional structural formula tool, creates a special work station for chemists! Main Features: Top-speed drawing Many powerful functions, like real time 3D modeling, conversion between IUPAC names and chemical structures, structural formula searching, chemical property analysis, intelligent gesture drawing, intelligent beautifying, etc. Multi-terminal synchronization Get and share your files from your device, PC, or any other device you use. No matter where you are, use the KingDraw mobile app to keep you productive and work together. KingDraw Cloud makes it easy to handle your files when you're out. Multi-format compatibility Easily saved as several file formats commonly used in chemical drawing softwares, for example cdx., mol., SMILES, etc. It also supports drawing standards like ACS 1996. [Feedback] If you have more questions, pls feel free to contact us on Twitter @KingDraw_chem [LICENSED APPLICATION END USER LICENSE AGREEMENT] https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

CNKI EXPRESS

Access a vast collection of academic resources including journals, dissertations, and newspapers. Customize your research experience with personalized updates and multiple reading formats. Available for users in China, Hong Kong, Macao, Taiwan, and other international regions.

Highlights
  • Unified search for academic resources
  • Access journals, dissertations, newspapers, and conference papers
  • Multiple reading formats (PDF, HTML, EPUB)
  • Personalized library for research updates
  • Institutional user services
  • Free re-download of previously purchased documents
Features
Read full description

CNKI Express: Striving to be an Excellent Academic App. (CNKI Official App) Services are available for China HK, Macao, Taiwan, and other overseas regions and countries. Leveraging its extensive experience in integrating 600 million Chinese and foreign literature and knowledge, CNKI strives to create a more comprehensive academic research service system. It provides one-stop digital resources including academic journals, dissertations/theses, newspapers, and conference papers to overseas users. Basic Features: - Unified search for various resources such as journals, dissertations/theses, newspapers, and conference papers, enabling one-stop access to academic achievements.- Offers multiple reading formats, including PDF, HTML, and EPUB for varied reading experiences. Highlighted Features - My Library: Users can customize and track the latest updates in their research fields and journals, keeping up with the newest scientific advancements in real time. - Linked Institutions: Offers enhanced services tailored to institutional users, providing a more comprehensive experience. Notes Previously purchased documents on CNKI can be downloaded again for free via the App.

Screenshots

CNKI EXPRESS4 screens

Verdict

The call

The clearest difference is review sentiment: KingDrawHD at 73% against CNKI EXPRESS's 0%. KingDrawHD also leads on rating (4.1 vs 1.8). CNKI EXPRESS's advantage is update cadence (every 8 days vs monthly) and device support (3 vs 1). On price, ratings volume, ads and in-app purchases 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. KingDrawHD sells 8 in-app purchases, starting at $1.99 per month and CNKI EXPRESS sells 6 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

KingDrawHD holds the better App Store score, 4.1 against 1.8. Both are backed by a comparable volume of ratings — 14 and 10 respectively. Written reviews point the same way: 73% of KingDrawHD's written reviews are positive against 0% of CNKI EXPRESS's.

UpkeepUpdate frequency

KingDrawHD ships an update monthly, CNKI EXPRESS every 8 days. The most recent releases landed on November 3, 2026 and November 6, 2026 respectively.

Scorecard4 real differences · 6 level
KingDrawHD versus CNKI EXPRESS: the parameters behind the verdict, then further details
ParameterKingDrawHDCNKI EXPRESS
PriceFreeFree
Rating4.1 (14 ratings) — better1.8 (10 ratings)
Positive reviews73.3% of reviews — better0.0% of reviews
Number of ratings14 — better10
Update frequencyMonthlyEvery 8 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPadiPhone, iPad, iPod — better
Requires iOS12.0 — better13.0
Further details — not scored
Size170 MB242 MB
Age rating4+17+
DeveloperQingdao KingAgroot Precision Agriculture Technology Co., Ltd.Tongfang Knowledge Network (Beijing) Technology Co., Ltd.

Customer experience

KingDrawHD

All ratings10 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews15 reviews
Positive73.3%
Neutral13.3%
Negative13.3%

CNKI EXPRESS

All ratings10 ratings
Positive20.0%
Neutral0.0%
Negative80.0%
Written reviews4 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

8 purchases

KingDrawHD

Subscriptions2
  • KingDrawVip-ContinuousMonthly$1.991 Month
  • KingDrawHD-ContinuousMonthly$9.991 Month
One-time6
  • KingDraw一天会员$0.99
  • KingDraw一个月会员$2.99
  • Monthly Member$9.99
Show 3 more
  • Monthly Member$11.99
  • KingDraw一年会员$14.99
  • Annual Member2 variants$99.99
6 purchases

CNKI EXPRESS

One-time6
  • 20知识点$19.99
  • 50知识点$49.99
  • 100知识点$99.99
Show 3 more
  • 200知识点$199.99
  • 300知识点$299.99
  • 500知识点$499.99

Questions

Is KingDrawHD free?
KingDrawHD is free to download, with in-app purchases available.
Is CNKI EXPRESS free?
CNKI EXPRESS is free to download, with in-app purchases available.
Which has better reviews, KingDrawHD or CNKI EXPRESS?
KingDrawHD is rated higher. KingDrawHD averages 4.1 out of 5 from 14 ratings, while CNKI EXPRESS averages 1.8 from 10 ratings.
Do KingDrawHD or CNKI EXPRESS have ads?
Neither KingDrawHD nor CNKI EXPRESS shows ads.
Which is updated more often, KingDrawHD or CNKI EXPRESS?
KingDrawHD ships an update monthly, and CNKI EXPRESS every 8 days. Most recently, KingDrawHD was updated on November 3, 2026 and CNKI EXPRESS on November 6, 2026.

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