# WA Chem — 二维化学结构绘制与编辑

> Native 2D chemical structure editor for Apple devices with on-device AI. (iPhone/iPad app by 建星 胡.)

- Source: https://appshunter.io/ios/app/wa-chem/id6809643025 (this page in markdown: same URL + `.md`)
- Developer: [建星 胡](https://appshunter.io/developer/6807228948)
- Category: Education, Productivity
- Price: $3.99
- Rating: 5.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 16.0 · 39 MB
- Languages: Chinese (Simplified, China), American English
- Released: 2026-09-20
- Data updated: 2026-09-25
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/wa-chem/id6809643025/reviews.md

## What is WA Chem?

WA Chem is a native 2D chemical structure editor for iPhone, iPad, and Mac. Built with Swift, SwiftUI, and Metal, it uses Core ML and the Apple Neural Engine to recognize chemical structures directly on your device. Images do not need to be uploaded to the cloud, helping protect your research data and privacy.

Key Features:
• Recognize chemical structures in images using the on-device Apple Neural Engine
• Draw and edit 2D molecular and reaction structures
• Native support for touch, Apple Pencil, keyboard, and mouse input
• Pan and zoom with two fingers, select and move structures, and use undo and redo
• Import and export chemical structure data, including SDF files
• Manage local molecules, documents, and chemical assets
• Optionally sync files across Apple devices with iCloud Drive
• Connect to WA-DD to manage projects, molecules, and ligand assets

WA Chem uses a unified native app architecture across iPhone, iPad, and Mac, providing a consistent and responsive editing experience. The app contains no subscriptions or in-app purchases.

## Key features

- On-device AI structure recognition
- 2D molecular and reaction drawing/editing
- Multi-device input support (touch, Pencil, keyboard, mouse)
- Import/export SDF files
- Local data management
- iCloud sync option

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/wa-chem/id6809643025/reviews.md

### 5/5 — 很好用

*2026-09-23*

希望继续完善iupac结构支持类型

## Frequently asked questions about WA Chem

### What is WA Chem?

WA Chem is a native 2D chemical structure editor designed for iPhone, iPad, and Mac. It allows users to draw, edit, and recognize chemical structures directly on their device.

### How does WA Chem recognize chemical structures?

WA Chem utilizes the Apple Neural Engine on your device to recognize chemical structures from images. This means your data is processed locally, enhancing privacy and security for your research.

### What devices does WA Chem support?

WA Chem is available for Mac, iPhone, and iPad, offering a consistent editing experience across the Apple ecosystem.

### Can I import and export chemical data with WA Chem?

Yes, WA Chem supports importing and exporting chemical structure data, including the widely used SDF file format, facilitating data exchange and integration.

### Does WA Chem have subscriptions or in-app purchases?

No, WA Chem does not feature any subscriptions or in-app purchases. It is a one-time purchase application.

### How much does WA Chem cost?

WA Chem is available for a one-time purchase price of $3.99.

### Is WA Chem suitable for offline use?

Yes, WA Chem is a native application that processes data on-device, meaning it can be used effectively without an internet connection for its core editing and recognition features.

### How often is WA Chem updated?

The latest version of WA Chem is 0.1.76, last updated on September 22, 2026. Updates are provided to enhance functionality and compatibility.

## Version history (last 2 releases)

### 0.1.76 — 2026-09-22

What's New

• Generate IUPAC names locally for supported common organic structures and keep them as editable canvas text.
• Keep generated names linked with their structures when selecting, moving, or regenerating them.
• Show or hide terminal CHx labels with improved bond and label spacing.
• Refine the shared iPhone, iPad, and Mac editor layout, Pencil interactions, and local asset workflow.

### 0.1.60 — 2026-09-21

No release notes.

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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 2026-09-25.*