If you're encountering problems please contact us: [email protected] or have a look at our forums: https://www.davx5.com/forums/ instead of down-voting the app so that we can provide support. DAVx⁵ is the only all-in-one app for all things CalDAV, CardDAV and WebDAV! It is a fully-featured sync solution for your contacts (CardDAV), calendars (CalDAV) and your tasks (based on VTODO). The app is easy to set up and integrates perfectly with your favorite calendar/contacts app (including default apps). It can also be used seperately, if you either have CalDAV, CardDAV or only Tasks. DAVx⁵ can also be used to access your remote WebDAV files. Want to keep track of tasks, notes and journals? Try jtxBoard: https://play.google.com/store/apps/details?id=at.techbee.jtx DAVx⁵ can synchronize everything from jtx Board with your own server! Compatible with almost every CalDAV/CardDAV servers and services, including Nextcloud, iCloud and Synology! After installing, you can add a DAVx⁵ account for CalDAV and CardDAV from within the app. See https://www.davx5.com/tested-with/ for help. For more information, please see the manual: https://www.davx5.com/manual/, the FAQ: https://www.davx5.com/faq/ and our forums: https://www.davx5.com/forums/ 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. ⊛ DAVx⁵ is completely open source * depends on server implementation / may be not supported by all servers Important compatibility notes Attention: DAVx⁵ 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 Successfully tested with: ⊛ 1CRM ⊛ A1.net ⊛ all-inkl.com ⊛ AOL Mail ⊛ Baïkal ⊛ Bitrix24 ⊛ Calendar and Contacts Server ⊛ cPanel ⊛ Cyrus IMAP ⊛ DAViCal ⊛ DavMail Gateway ⊛ Daylite ⊛ EDIS ⊛ EGroupware ⊛ Fastmail ⊛ fruux ⊛ GMX ⊛ Google ⊛ Group Office ⊛ Hetzner KonsoleH ⊛ Horde ⊛ IceWarp ⊛ iCloud ⊛ Kerio Connect ⊛ Kolab Now ⊛ Kopano ⊛ luckycloud ⊛ macOS Server ⊛ mail.de ⊛ mail.ru ⊛ mailbox.org ⊛ Mailfence ⊛ MDaemon ⊛ Nextcloud ⊛ openCRX ⊛ Oracle Beehive ⊛ Oracle Communications UCS ⊛ ownCloud ⊛ OwnCube ⊛ Posteo ⊛ Radicale ⊛ SmarterMail ⊛ SOGo ⊛ Synology DSM ⊛ Teambox ⊛ Tine 2.0 ⊛ T-Online ⊛ web.de ⊛ Xandikos ⊛ Yahoo Mail! (calendar only) ⊛ Yandex ⊛ Zimbra ⊛ Zoho ⊛ … and many others: https://www.davx5.com/tested-with/ Also available as a separate business version with Enterprise features like mass-deployment and pre-configurable settings: https://www.davx5.com/organizations/managed-davx5 Privacy Policy: Please find out how we handle your data: https://www.davx5.com/privacy/