DAVx⁵ – CalDAV CardDAV WebDAV

In-app purchases
4.3
3.88K reviews
Content rating
Everyone
100K+
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Content rating
Everyone
In-App Purchases
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About this app

If you're encountering problems please contact us: support@davx5.com 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/
Updated on
Jul 18, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Location, Files and docs and 2 others
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

4.2
3.66K reviews
Garrett Culver
June 18, 2024
Worth every penny! One of the few apps in my life where I spent the money, and in less than 10 minutes was fully happy with my purchase. I've used it for a few weeks now and it works perfectly. Syncs the calendar and contacts from my mail server (which, despite it having an app, does not sync calender and contacts to my phone) right in to the calendar and contacts app in my device. Exactly what I needed.
40 people found this review helpful
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Paul Carter
July 21, 2026
I've been using this app for quite a while now. It has always just worked well, so that I can just ignore it and let it do its thing. Recently, I did get an error message from the app, so I contacted the developers. They got back to me promptly with a temporary fix, then followed up with the permanent fix once that was ready. Given all the lousy customer support out there, these guys really stand out. Great product, great support, and super friendly.
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Ryan Camaratta
July 8, 2026
Game changer, supports everything I throw at it. Using this to sync all my calendars and address books (multiple, hosted on Thundermail servers) to Fossify applications on my phone This gave me the option to finally be platform agnostic and use whatever calendars and contacts services I want! The UX is great, slick, functionality's on point, very grateful to the team that develops this app and wish I knew it existed way sooner Absolute must have
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What’s new

https://github.com/bitfireAT/davx5-ose/releases/tag/v4.5.18-ose

4.5.18: Important bug fixesImportant bug fixes

Badges update: Badges can now be activated by clicking them to buy them again! If you like what we do you can collect "Badges" from the nav menu to further support us. Thank you!! <3