Version 0.4.32 - org.dmfs.caldav.lib
Last updated: Fri, 12 Mar 2021 6:39:42 UTC

Brings CalDAV to Android since 2011.

CalDAV-Sync apk

APP Information

Download Version 0.4.32 (748)
Apk Size2.67 MB
App DeveloperMarten Gajda
Malware CheckTRUSTED
Install on Android2.2.x and up
App Packageorg.dmfs.caldav.lib.apk

Download CalDAV-Sync 0.4.32 APK

App Description

CalDAV-Sync is dmfs,caldav,productivity,caldav-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 Marten Gajda website who developed it. org.dmfs.caldav.lib.apk apps can be downloaded and installed on Android 2.2.x and higher Android devices. The Latest Version of 0.4.32 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 585+ times on store. You can also download org.dmfs.caldav.lib APK and run it with the popular Android Emulators.

CalDAV-Sync is a CalDAV client for Android to synchronize events and tasks. Due to its implementation as sync adapter it integrates seamlessly with the native calendar app and widgets. Also check out CardDAV-Sync

To get task support, please install this task app

Since version 0.4 CalDAV-Sync supports read-only sync of webcal ics feeds (via http & https).

Important note for Android 4.1 and Samsung users: To prevent the removal of your accounts on reboot install this app:
Although this issue seems to be fixed in Android 4.2 the workaround is still required on Samsung devices.

Please note that there is a new issue in Android 4.4:
It causes accounts to be removed when an app is updated. Installing the workaround app should help.

This app will create new calendars on your device (one for each calendar on your server account).

Get support and news via Twitter

Please send me an email if you find a bug. 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 CalDAV-Sync can not (yet) tolerate or work around. If you report bugs I can fix them quickly and everyone will benefit.

It is tested and works with
- DAViCal
- SOGo
- Zimbra
- OSX/iCal Server
- eGroupware
- Oracle Beehive
- david.fx
- iCloud
- ownCloud
- many more, see for a list of all servers reported to work

Note to Yahoo!® users: Due to the many issues on Yahoo!'s servers, Yahoo! is no longer officially supported by this app.

Note to users: doesn't support CalDAV. However you should be able to sync your calendar one-way using the Webcal option.

After the installation got to "Settings" > "Accounts & Sync" and create a new Account.

If there is no calendar installed on your device, go to my website and install CalendarProvider.apk and Calendar.apk (FroYo and Gingerbread only)

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


* task support (you'll need this task app
* basic support for self-signed certificates
* supports SNI (needs Android 2.3 and newer)
* supports client certificate authentication (Only Android 4.0 and 4.2 and newer, doesn't work on Android 4.1 yet)
* any number of CalDAV-accounts supported
* automatic calendar discovery (works for most servers)
* auto-provisioning
* supports OAuth2.0 authentication for Google accounts
* syncs multiple alarms
* loads calendar colors from servers if available
* two-way-sync
* sync multiple calendars per account
* full support for time zones
* encrypts passwords in local database
* supports webcal ics feeds (read-only)
* initial support for attachments (Android 4.1 or newer, doesn't work with all calendars apps)
* Dutch, English, French, German, Hebrew, Italian, Polish, Russian translations

App ChangeLog

  • fix DIGEST challenge parser
  • fix occasional crash when setting up Google Sync
  • improve calendar update (should fix duplicate calendars with some servers)

App Screens

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

Android Contact Utils_v0.4.32(748).apk

Apk scan results

Apk Scaned By TotalVirus Antivirus,org.dmfs.caldav.lib.apk Was Risky.Detected 1 From 55 Scan.
Scan Stats:harmless:0|type-unsupported:9|suspicious:0|confirmed-timeout:0|timeout:0|failure:1|malicious:0|undetected:62|
Name:Android Contact Utils_v0.4.32(748).apk
Name:39d8e2c1a02b8de14493789fc974dc75b59d08773bfcffdd97293f82902c76dc SHA-1:7d12154c38a6fff17d20afa92e28d95da112c7f4 SHA-256:39d8e2c1a02b8de14493789fc974dc75b59d08773bfcffdd97293f82902c76dc SSDEEP:49152:du2dKI7i1Opatz3H6Q8MrulM41kYLVizASEQtvxwiiAY:UBI70qatzsOGVizASEywNAY File type:Android Magic:Zip archive data, at least v2.0 to extract File size:2802759 Uncompressed Size:746473 Contained Files :1232 Contained Files By Type:xml:45,png:504,

Older Versions

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Google Play Reviews

  1. Denis Volin-avatar

    Denis Volin

    Recently, like couple of years, different Samsung Note devices, I've been experiencing a weird problem: sometimes CalDAV account calendars from FastMail completely disappears from both Samsung Calendar and the CalDAV-Sync itself. Gone, like never been there, yet, if you keep CalDAV-Sync open for awhile, even in the background, the account comes back, syncs and everything comes back to normal. Well, I know the solution, but I would prefer not to have the issue at all. Same for CardDAV-Sync.

  2. Thomas D-avatar

    Thomas D

    It works but it's very frustrating. In particular it's impossible to update the username of an account, and the password can only be updated on a failure. It's also impossible to see or modify an account's url after you've created it. Just a very frustrating UI.

  3. Secundus Maximus-avatar

    Secundus Maximus

    Sync to/from Android practically stopped working for me when I upgraded my NextCloud server to version 18 or 19. I suspected that NC had changed something in CalDAV, which broke this app and other similar apps. However, after days of searching for a solution and even trying another CalDAV sync app to no avail, I found that simply editing and saving some of my recurring events finally fixed this for me. Some event apparently had caused problems after the NC upgrade. All seems fine now.

  4. Kia May-avatar

    Kia May

    I was happy with this app but google is blocking it now and my calendars can't be synched.

  5. Sifron Benjamin-avatar

    Sifron Benjamin

    Syncs with Fastmail, updates lag though. It's had been reliable to sync my calendar with my phone, but the sync interval lags up to a few hours sometimes.