Sync Contacts (CardDAV), Calendars and Tasks (CalDAV). Access your WebDAV files.
DAVx⁵ is the all-in-one sync solution for CalDAV, CardDAV and WebDAV, enabling seamless management of calendars, contacts, tasks, and remote files from a single app. It combines open-source privacy-first design with broad server compatibility (Nextcloud, iCloud, Synology) and a strong 4.18 rating from thousands of users, available for a one-time price of $6.49. With over 100,000+ total downloads and 2.3K in the last 30 days, it remains a proven choice for productivity on Android.
Pros & Cons
Open source with a strong privacy stance (no ads or tracking)
Wide compatibility with server ecosystems like Nextcloud, iCloud, and Synology
Two-way synchronization across calendars, contacts and tasks
Easy setup with auto-detection and self-signed certificate support
Higher upfront price (paid app) compared to some freemium alternatives
Lacks Google integration referenced by competitors in related keywords
May require server configuration knowledge for optimal use
About DAVx⁵ – CalDAV CardDAV WebDAV
DAVx⁵ – CalDAV CardDAV WebDAV is a productivity app developed by bitfire web engineering.
Download Statistics
DAVx⁵ – CalDAV CardDAV WebDAV has been downloaded 290 thousand times. In the last 30 days, the app was downloaded 2.3 thousand times. It is ranked #1 in productivity.
User Ratings
DAVx⁵ – CalDAV CardDAV WebDAV is rated 4.21 out of 5 stars. The rating is based on 3.6 thousand ratings.
App Information
DAVx⁵ – CalDAV CardDAV WebDAV costs $6.49 to download. The APK download size is 8.59 MB. The latest version available is 4.5.15-gplay. The last update was on June 20, 2026.
Technical Requirements
DAVx⁵ – CalDAV CardDAV WebDAV requires Android 5.0+ or higher. The app has a content rating of Everyone. The app has been available on Google Play December 2013.
Description
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
⊛ … 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/
Get a detailed PDF report for DAVx⁵ – CalDAV CardDAV WebDAV with download trends, rating history,
and key performance statistics — useful for competitive research or tracking your own app.
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Comments on DAVx⁵ – CalDAV CardDAV WebDAV for Android
★★★★☆Dimitri Bosiers· Nov 10, 2023
Works great, even has support for orbot (tor) I use it to sync mail, calendar and contacts with a privacy enhanced provider.
★★★★★Jordan “Drak” Drakinite· Apr 8, 2025
It's been working perfectly for me without issues ever since I set it up, maybe 2 years ago or so? All I have it configured to do is sync my Nextcloud calendar and contacts. It's very much been set-and-forget.
★★★★★Nicolas V· Dec 9, 2025
Works great for syncing my Fast mail contacts and calendars to my Android.
★★★★★Joe Supererogatory· Feb 4, 2025
2022 comment: Works well, but please be aware that this app will NOT sync your local contacts or calendars to your CarD av or CalDav accounts. Edit: Thanks for replying! 2025 comment: Did that tool happen? It would be good to copy local contacts and calendar entries to a synced account.
★★☆☆☆Tomasz Fiszer· Dec 2, 2025
Very flaky and unstable, doesn't work with radicale very well. I would refund if I could, as it continuously spams me with auth issues, yet when I go to the app and sync manually, it all works fine. I can't really trust it does its job correctly. Waste of money and time.
★★☆☆☆Gunnar Guðvarðarson· Aug 24, 2025
I have wanted to use this app for _years_, but I couldn't because I didn't know it supported client certificates. I use Nextcloud and what I've always been doing when I wanted to test this app is select Nextcloud because I expected this app to prompt for a certificate when the server asked for one, but nooooo that would be user-friendly we can't have that. Please detect if you are being challenged for a client certificate in the TLS handshake and ask the user to select one.
★★☆☆☆Ben Pearson· Feb 20, 2026
Next time you upgrade the app; don't include a nag splash that causes all syncs to fail. I need the app to keep functioning across upgrades without my intervention.
Google Play Rankings for DAVx⁵ – CalDAV CardDAV WebDAV
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Technologies used by DAVx⁵ – CalDAV CardDAV WebDAV
DAVx⁵ – CalDAV CardDAV WebDAV is requesting 26 permissions and is using 42 libraries.
Show details
Trust & Safety: DAVx⁵ emphasizes trust and safety: it is open source, with no ads or tracking and GDPR-compliant. It requests network access, calendar and contacts permissions, and background services necessary for reliable, continuous syncing; the app also supports secure authentication practices (client certificates).
Each subscription will automatically renew 3 days before the expiration date for
the same time period. Subscriptions can be cancelled at any time before the renewal.
