DAVdroid 详细介绍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 privacynative Android 4+ implementationlightweight application, not cluttered with "features"flawless integration with device and address book/calendar appshigh-performance algorithmsseperately usable (either CalDAV or CardDAV)free and open-source software (FOSS)界面截图：
