CardDAV-Sync APK

Version 0.4.23 - org.dmfs.carddav.Sync

Brings CardDAV to Android since 2011.

CardDAV-Sync apk

APP Information

Download Version 0.4.23 (145)
Apk Size2.28 MB
App DeveloperBruce Thomas
Malware CheckTRUSTED
Install on Android2.2.x and up
App Packageorg.dmfs.carddav.Sync.apk

Download CardDAV-Sync 0.4.23 APK

App Description

CardDAV-Sync is dmfs,carddav,sync,productivity,carddav-sync, content rating is Everyone (PEGI-3). This app is rated 5 by 1 users who are using this app. To know more about the company/developer, visit Bruce Thomas website who developed it. org.dmfs.carddav.Sync.apk apps can be downloaded and installed on Android 2.2.x and higher Android devices. The Latest Version of 0.4.23 Available for download. Download the app using your favorite browser and click Install to install the application. Please note that we provide both basic and pure APK files and faster download speeds than APK Mirror. This app APK has been downloaded 2872+ times on store. You can also download org.dmfs.carddav.Sync APK and run it with the popular Android Emulators.

CardDAV-Sync is a CardDAV client for Android to synchronize contacts. Due to its implementation as sync adapter it integrates seamlessly with the default contacts app.
(Also check out CalDAV-Sync)

Important note for Android 4.1 and Samsung users: To prevent the removal of your accounts on reboot install this app:
At present, Samsung users still need this workaround, even on recent devices.

Also note that many Android 4.x and 5.0 devices need the workaround to prevent removal of accounts during an app update.

HTC One users please check out this site first:

Get support and news via Twitter

If you find a bug send me an email please. Without detailed error description I often can't do anything especially when I can't reproduce it. It's also possible that your server has a bug that CardDAV-Sync can not (yet) tolerate or work around. If you report bugs I can fix them quickly and everyone will benefit.

This is the paid version of CardDAV-Sync. It equals the free version except that it syncs more fields. Visit my website for details.

Please uninstall the free version before you install the paid one (and vice versa).

For users which are unable to edit or create synced contacts I published an editor at the market. Just search for "Contact Editor" or see our website.

Once this app reaches version 1.0, I'll make it open source.
See for details on the open source status.


* Sync contacts from a CardDAV-server (tested and reported to work with DAViCal, SOGo, egroupware, Zimbra, david.fx, Fruux, ownCloud ... and more. See our website for details)

* supports multiple address books per account

* basic support for self-signed certificates

* auto-provisioning

* two-way-sync

* syncs names, phone numbers, email addresses, postal addresses, photos, birthdays (but please visit "date formats" on my website first), notes, instant messengers, organizations, nicknames, categories (groups), phonetic names, related names and websites

* automatic address book discovery (works with most servers in default configuration)

* one-way-sync of Apple-style groups

* Support for Apple-style custom labels (X-ABLABEL)

* stores passwords encrypted

* supports efficient sync-collection request

* supports client certificate authentication

* import wizard for contacts from other accounts

App ChangeLog

  • Fix authentication issues

App Screens

CardDAV-Sync App Screen 1CardDAV-Sync App Screen 2CardDAV-Sync App Screen 3CardDAV-Sync App Screen 4CardDAV-Sync App Screen 5CardDAV-Sync App Screen 6CardDAV-Sync App Screen 7


Apk scan results

Apk Scaned By TotalVirus Antivirus,org.dmfs.carddav.Sync.apk Was Pure And Safe.

Scan Stats:harmless:0|type-unsupported:11|suspicious:0|confirmed-timeout:0|timeout:1|failure:0|malicious:0|undetected:63|
Name:600321db886ac258e032d3822b4c0f74 SHA-1:4fe2219406c7710dd61b79dbc68c196ea857ff1a SHA-256:9e2816a8a9f381ee15d60e66dde9ff350a35cf620d90a98dec356580637fe78e SSDEEP:49152:WCCTI7IgWaOxgslzNEPVMsbEhWPUEb2N8f:WxI7/9OT6PasbEQ8vq File type:Android Magic:Zip archive data, at least v2.0 to extract File size:2386741 Uncompressed Size:3938587 Contained Files :768 Contained Files By Type:xml:249,dex:1,MF:1,md:1,RSA:1,SF:1,png:505,

Older Versions

More Android Apps to Consider

Google Play Reviews

  1. Laurent Marandet-avatar

    Laurent Marandet

    Does not work anymore, with recent android smartphones. Was good in the past, but absolute garbage right now. Now I have moved to OpenSync Address Book which is free of charge and works perfectly with Baikal Server.

  2. Winston Smith-avatar

    Winston Smith

    Used ho be a great carddav syncing app but it's been abandoned. --- I had a problem with syncing for a while. Turned out the problem was in the system settings. For some of you who encounter the same problem, try to check these settings: 1. Battery saver (give no restrictions to carddav/caldav-sync) 2. Permissions to auto start (make sure the app is allowed to start automatically) 3. Permissions to start in the background (self explanatory) Now I can sync seamlessy with Fastmail, iCloud & Gmail

  3. Chris Bennett-avatar

    Chris Bennett

    My home rolled certificate (which worked with this app before and still works with everything else) stopped working a few months ago. I hope the developer who has been so helpful in the past will be on top of this and get the app updated quickly to work again. Unfortunately I am beginning to suspect that development and support has ceased :-(

  4. Petar Donchev-avatar

    Petar Donchev

    Suddenly it stopped working and my local contact book stays empty. If I force sync, it does nothing, no status or error. I can see in Fasmail that the app password has not been used in 10 days. No battery saver, but it worked with saver for long time and if a sync manually it shouldn't matter.

  5. Homer Slated-avatar

    Homer Slated

    This is now clearly abandonware. The developer, Marten Gajda, hasn't updated the app since 2017, and even his own website hasn't been touched since 2016. The last post on his Twitter account is from 2011. I was starting to suspect he might actually have died, until I discovered that he's actually been actively making commits this month (February 2021) to OpenTasks on GitHub. If you need a currently supported CardDAV and CalDAV provider, I suggest you use DAVx5, a paid version of which is available here on Play, or exactly the same version without restrictions is also available on F-Droid for free (legally). It's a shame that Gajda doesn't have the courtesy to simply make a statement either here and/or on his website that he's abandoned the project, and maybe even explain why, especially as we're paying customers. That's what you get for wasting your money on proprietary software, I guess.

  6. Aaa Bbb-avatar

    Aaa Bbb

    Just doesn't work. Leaves the address book blank, at least in the paid version. No response from developers other than an automatic reply saying they are busy.

  7. Nick Fedarkevich-avatar

    Nick Fedarkevich

    Works flawlessly with my OwnCloud setup for more than 4 years now. Never ran into any problems. Smartphones change, CardDAV stays.

  8. A Google user-avatar

    A Google user

    Developer supports his users unlike the competitor. I happily sync my contacts with my Sogo groupware server with this app. No issues. Very happy to support this dev with paid app.

  9. Oscar Mendoza-avatar

    Oscar Mendoza

    Used to work. Now it just will not sync with AOL Contacts. Looks like developer abandoned the app. No response after several support emails.

  10. m-avatar


    I've been using this for years. This year, 2020, it just stopped working. My Contacts is empty.