# KingDraw

> Chemical drawing editor for molecules, reactions, and organic chemistry pathways. (iPhone/iPad app by Qingdao KingAgroot Precision Agriculture Technology Co., Ltd..)

- Source: https://appshunter.io/ios/app/kingdraw/id1336806206 (this page in markdown: same URL + `.md`)
- Developer: [Qingdao KingAgroot Precision Agriculture Technology Co., Ltd.](https://appshunter.io/developer/1452425595)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Rating: 3.30/5 from 58 App Store ratings · 34 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 187 MB
- Languages: American English, Chinese (Simplified, China)
- Released: 2018-01-31
- Data updated: 2026-08-11
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/kingdraw/id1336806206/reviews.md

## What is KingDraw?

KingDraw App 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/

## Key features

- Sketch molecules and reactions
- Real-time 3D modeling
- IUPAC name to structure conversion
- Multi-terminal synchronization
- Multi-format file saving
- Intelligent gesture drawing

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| KingDrawVip-ContinuousMonthly | $1.99 | per month |
| KingDrawVip-ContinuousMonthly | $9.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Monthly Member | $9.99 | one-time |
| Annual Member | $99.99 | one-time |
| KingDraw一个月会员 | $2.99 | one-time |
| Annual Member | $99.99 | one-time |
| KingDraw一年会员 | $14.99 | one-time |
| KingDraw一天会员 | $0.99 | one-time |
| Monthly Member | $11.99 | one-time |


## Recent user reviews (10 of 34)

All indexed reviews: https://appshunter.io/ios/app/kingdraw/id1336806206/reviews.md

### 5/5 — Best mobile molecule maker Eva

*2026-07-01*

Definitely the best molecule maker that I’ve seen on the App Store in a while. It lets you use any element, use positive and negative charges, and even name custom molecules that don’t exist in pubchem library! Would recommend to… everyone 😃

### 3/5 — Problem with saving as a file

*2026-06-26*

I tried to save the file in my ICloud but it keep saying that Network connection failed, Although My connection is okay. Also before that, it kept saying OSS key access you provided is not enabled or something like that.

### 1/5 — Ridiculous

*2026-01-21*

Long time ChemDraw user and thought I would try something free.  This is horrible.  Not intuitive at all.  Just terrible to use.  Don’t waste your time

### 5/5 — aaaaa

*2025-02-04, version 3.5.8*

特别好用

### 5/5 — Amazing

*2024-10-13, version 3.5.8*

Easy to use, perfect for organic chemistry

### 5/5 — Really useful for Organic Chemistry

*2024-08-19*

Great alternative for ChemDraw and works on iPad. Totally love it! It would be nice if it could predict proton and carbon-13 NMR peaks.

### 4/5 — Not for specialised applications

*2024-06-27, version 3.5.8*

Fantastic bit of app, but can’t do non-standard functionality.
I try adding Oxygen and it adds OH instead.  I actually need to add OLi but can’t do it.

### 2/5 — Doesn't recognize inorganic structures or do calculations

*2024-05-26*

This app is rather unique in what I've found because it allows structure drawing. 
However, it would be more powerful if it allowed to calculate molecular weights and could serve as a structure repository for projects.
If it did these things I'd pay the steep subscription price for storage.

**Developer response:** KingDraw is mainly used in the field of organic chemistry. And we supports the calculation of chemical properties, which can be found in the toolbar below the artboard.

### 1/5 — 千万别注册帐户！

*2024-04-03, version 3.5.8*

因为注册了也只能保存一个文档；建议作者推出一次性购买版本。

### 1/5 — Liars

*2023-06-22*

They recently pulled the number of free saves down to zero so you cannot even delete files in order to add new ones. Won’t save or export at all without mightily expanding expensive subscription. Can’t use it any more free.

## Frequently asked questions about KingDraw

### What does KingDraw do?

KingDraw is a professional chemical drawing editor that allows users to sketch molecules, reactions, organic chemistry objects, and pathways. It provides tools for chemists to create and manage chemical structures and related diagrams.

### What are the main features of KingDraw?

Key features include top-speed drawing, real-time 3D modeling, conversion between IUPAC names and chemical structures, structural formula searching, chemical property analysis, intelligent gesture drawing, and intelligent beautifying. It also offers multi-terminal synchronization and multi-format compatibility.

### Is KingDraw free to use?

The application is available for free with the option for in-app purchases. This means users can download and use basic functionalities without cost, with advanced features or services potentially requiring payment.

### What file formats does KingDraw support?

KingDraw can save files in several common formats used in chemical drawing software, such as .cdx and .mol, as well as SMILES. It also supports drawing standards like ACS 1996, ensuring compatibility with other chemical drawing tools.

### How can I sync my work across devices?

The app offers multi-terminal synchronization, allowing you to access and share your files from your device, PC, or any other device. KingDraw Cloud facilitates easy file management when you are on the go, ensuring your work is always accessible.

## Version history (last 5 releases)

### 3.5.8 — 2023-06-20

Fix Bugs.

### 3.5.7 — 2023-05-08

Fix Bugs

### 3.5.6 — 2023-01-12

fix bugs

### 3.5.5 — 2022-11-14

Fix bugs

### 3.5.4 — 2022-11-09

Fix bugs.

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| --- | --- | --- | --- |
| [化学-化学实验方程式工具箱](https://appshunter.io/ios/app/id1639863850) | — | Free | Utilities |
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| [Molecular Model Simulator](https://appshunter.io/ios/app/molecular-model-simulator/id6459994670) | — | Free | Utilities |
| [NMR Solvent Peaks](https://appshunter.io/ios/app/nmr-solvent-peaks/id1293462223) | 5.0 (11) | Free | Utilities |
| [Molecule Simulator](https://appshunter.io/ios/app/molecule-simulator/id1538249996) | 4.3 (24) | Free | Utilities |
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## More apps by Qingdao KingAgroot Precision Agriculture Technology Co., Ltd.

- [清原农冠](https://appshunter.io/ios/app/id1054842981)
- [清原抗联](https://appshunter.io/ios/app/id1133028068)
- [KingDrawHD](https://appshunter.io/ios/app/kingdrawhd/id1535782391)

All apps by Qingdao KingAgroot Precision Agriculture Technology Co., Ltd.: https://appshunter.io/developer/1452425595

## Related topics

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-11.*