Android的CalDAV解决方案DAVdroid

　　DAVdroid 是 Android 4+ 上的一个开源的 CalDAV/CardDAV 同步应用解决方案。

　　关键特性：

• two-way-synchronization (server ↔ client, server always wins)

• focused on simplicity, security and privacy

• native Android 4+ implementation

• lightweight application, not cluttered with "features"

• flawless integration with device and address book/calendar apps

• high-performance algorithms

• seperately usable (either CalDAV or CardDAV)

• free and open-source software (FOSS)

　　界面截图：