Graphics & Design
Lithium 2D/3D CAD
支持二维绘图与三维线框的轻量 CAD，提供多种工程与图像交换格式。
适合查看、整理和绘制线框设计
可在一个工作区处理二维图形、三维线框并与其他 CAD 工具交换文件。
Keep in mind: 它不是实体建模器；保存、导出和打印需要订阅，不能把免费下载理解为完整免费 CAD。
Inside the app
Official product images
What you can do
- 二维绘图与三维线框编辑
- DWG、DXF、PDF、STL 等格式交换
- 本地文件与可选 iCloud 工作流
Good for
- 需要线框绘图及格式交换的设计者
Consider alternatives for
- 需要参数化实体建模、仿真或免费完整输出的人
Limitations & considerations
- Captured minimum: macOS 12.4.
- 它不是实体建模器；保存、导出和打印需要订阅，不能把免费下载理解为完整免费 CAD。
Privacy & permissions
设计文件可能包含商业信息；使用 iCloud 时需核对同步账户和分享范围。
Sources & review notes Updated Nov 15, 2026
Reviewed by iApp4Me Editorial Team. Recommendations use the linked documentation and attributed accounts; device observations are identified separately.
- US App Store developer description
Complete description, release notes, download price and compatibility metadata captured 2026-11-02.
- Official developer disclosure
Full cached official product text read; dated capture 1794595865.357366. Pricing and platform scope distinguished from the saved store listing.
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