DAVx⁵ (previously known by a different name) is the only all-in-one synchronization solution for your contacts (CardDAV), calendars (CalDAV) and your tasks (based on VTODO). The application is easy to configure and integrates perfectly with your favorite calendar / contacts application (including default applications). It can also be used separately, if you have CalDAV, CardDAV or just Tasks.
+ Bidirectional synchronization (server ↔ client)
+ Native Android 4+ implementation
+ Perfect integration with your favorite device and applications
+ Easy setup
+ Fast algorithms for high performance
+ Optimized for phones and tablets
+ Super safe and we respect your privacy!
+ DAVx⁵ is completely open source

Supported Android
(4.1 and up)
KitKat (4.4 – 4.4.4),Lollipop (5.0 – 5.1.1),Marshmallow (6.0 – 6.0.1),Nougat (7.0 – 7.1.1),Oreo (8.0-8.1), Pie(9.0)

Download DAVx⁵ CalDAV CardDAV Client 2.6.4-gplay APK Final Paid

DAVx_.ver.2.6.4-gplay.build.331.apk