Quick Copper

功能強大，簡單易用的電子原理圖編輯器

Powerful and simple to use electronic schematics editor (schematic capture).

★ Presentation-quality schematics with customizable symbol

★ Wire drawing with automatic routing

★ Share as PNG/JPEG/SVG/PDF

★ The Android design patterns followed

★ Basic simulation features

There are two modes of operation, offline and online. It is up to you to decide if you want to store all data locally or setup online storage for backup reason or to synchronize two or more devices. You can change the mode any time.