Comparison

KingDrawHD vs Molecule Simulator

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

Molecule Simulator

Visualize the 3D structures of molecules using data from PubChem and Protein Data Bank. Explore molecules in various viewing modes and download an extensive library of compounds.

Highlights
  • 3D molecular visualization
  • Space filling mode
  • Ball-and-stick mode
  • Data from PubChem
  • Data from Protein Data Bank
  • Downloadable molecule library
Features
Read full description

This app is a molecular viewer. With the data on PubChem and Protein Data Bank, it can show us 3D structure of molecules. Both space filling mode and ball-and-stick mode. --------------------------------------------- Contains some pre-installed modes. And you can download all kinds of molecules from PubChem or Protein Data Bank.

Screenshots

Molecule Simulator4 screens

Verdict

The call

The clearest difference is in-app purchases: Molecule Simulator at none against KingDrawHD's 9. Molecule Simulator also leads on review sentiment (100% vs 73%) and device support (3 vs 1). KingDrawHD's advantage is update cadence (monthly vs every 4 months) and iOS requirement (12.0 vs 15.0). On price, rating, ratings volume and ads 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. Molecule Simulator asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.2 for KingDrawHD against 4.3 for Molecule Simulator. Both are backed by a comparable volume of ratings — 10 and 24 respectively. Written reviews are what separate them: 73% of KingDrawHD's written reviews are positive against 100% of Molecule Simulator's.

UpkeepUpdate frequency

KingDrawHD ships an update monthly, Molecule Simulator every 4 months. The most recent releases landed on September 9, 2026 and September 21, 2026 respectively.

Scorecard6 real differences · 4 level
KingDrawHD versus Molecule Simulator: the parameters behind the verdict, then further details
ParameterKingDrawHDMolecule Simulator
PriceFreeFree
Rating4.2 (10 ratings)4.3 (24 ratings) — better
Positive reviews73.3% of reviews100.0% of reviews — better
Number of ratings1024 — better
Update frequencyMonthly — betterEvery 4 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPadiPhone, iPad, iPod — better
Requires iOS12.0 — better15.0
Further details — not scored
Size170 MB8 MB
Age rating4+4+
DeveloperQingdao KingAgroot Precision Agriculture Technology Co., Ltd.仕清 刘

Customer experience

KingDrawHD

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

Molecule Simulator

All ratings22 ratings
Positive86.4%
Neutral0.0%
Negative13.6%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

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
None

Molecule Simulator

No in-app purchases

Questions

Is KingDrawHD free?
KingDrawHD is free to download, with in-app purchases available.
Is Molecule Simulator free?
Molecule Simulator is free to download, with no in-app purchases.
Which has better reviews, KingDrawHD or Molecule Simulator?
Molecule Simulator is rated higher. KingDrawHD averages 4.2 out of 5 from 10 ratings, while Molecule Simulator averages 4.3 from 24 ratings.
Do KingDrawHD or Molecule Simulator have ads?
Neither KingDrawHD nor Molecule Simulator shows ads.
Which is updated more often, KingDrawHD or Molecule Simulator?
KingDrawHD ships an update monthly, and Molecule Simulator every 4 months. Most recently, KingDrawHD was updated on September 9, 2026 and Molecule Simulator on September 21, 2026.

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