DAVx⁵ CalDAV CardDAV WebDAV v4.3.15–gplay

Compatible with almost every CalDAV/CardDAV servers and services, including Nextcloud, iCloud and Synology!
Key features
- Sync your Calendars (CalDAV) and address-books (CardDAV) and Tasks (VTODO via CalDAV) in a single app
- Two-way synchronization (server ↔ client)
- Access your WebDAV files and work with remote storages - seamlessly just as they would be local on the device
- Flawless integration with your device and favorite apps
- Easy setup (resource auto-detection, support for self-signed certificates, authentication by client certificates)
- Fast algorithms for high performance (CTag/ETag, limit sync time range for past events, multi-threaded sync)
- Optimized for phones and tablets. Backward compatibility for old Android versions.
- 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.
- GDPR compliant.
- DAVx is completely open source
* depends on server implementation / may be not supported by all servers
Important compatibility notes
Attention:DAVx must not be moved to the SD card! This will cause strange behaviour, including account and data loss.
Get the best out of this app...
- ... when using with your own DAV server (Radicale, DAViCal, SabreDAV, Baikal, ...) and HTTPS - so you own and control all your data while having the comfort of synchronization between various devices. Or use a hosted DAV service you trust or the one of your company.
- ... and combine it with Evolution / Thunderbird / WebDAV storage etc. on your computer
* Our big internal rewrite to Compose is almost finished which results in a fast responding and more streamlined feeling
* We highly improved how background sync workers are integrated with the system. Syncing should now be more relable and exact when the app is in background.
DAVx⁵ is a one-time payment but if you like what we do you can collect "Badges" from the navigation menu to further support us. This is highly appreciated <3
System Requirements:
Requirements: Android 7.0+
Home Page-

https://play.google.com/store/apps/details?id=at.bitfire.davdroid&hl=en