DAVx⁵ is the only all-in-one app for everything CalDAV, CardDAV and WebDAV! It is a complete synchronization solution for your contacts (CardDAV), calendars (CalDAV) and your activities (based on VTODO). The app is easy to set up and integrates seamlessly with your favorite calendar / contacts app (including default apps). It can also be used separately, if you have CalDAV, CardDAV or just Tasks. DAVx⁵ can also be used to access remote WebDAV files.
Compatible with almost all CalDAV / CardDAV servers and services, including Nextcloud, iCloud and Synology! Attention: DAVx⁵ should not be moved to SD card! This will cause strange behavior, including loss of accounts and data. when used with your own DAV server (Radicale, DAViCal, SabreDAV, Baikal, …) and HTTPS in order to own and control all data while having the convenience of synchronization between various devices. Or use a hosted DAV service that you trust or that of your company.
* Sync your calendars (CalDAV) and address books (CardDAV) and tasks (VTODO via CalDAV) in one app
* Two-way synchronization (client server)
* Access your WebDAV files and work with remote archives seamlessly just as if they were local to your device
* Seamless integration with your favorite device and apps
* Easy configuration (automatic resource discovery, support for self-signed certificates, authentication via client certificates)
* Fast algorithms for high performance (CTag / ETag, sync time interval limit for past events, multi-threaded sync)
* Optimized for phones and tablets. Compatibility with previous versions of Android.
* Management options within the app (Create and delete new calendars, address books and to-do lists *)
* Super secure and we respect your privacy!
* Absolutely no ads and no tracking.
* Compliant with the GDPR.
* DAVx⁵ is completely open source
Supported Android Devices : [5.0–5.0.2] Lollipop – [6.0 – 6.0.1] Marshmallow – [7.0 – 7.1.1] Nougat – [8.0-8.1] Oreo –  Pie