50.000 - 100.000 download

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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

Tags: caldavsync apk, caldavsync beta apk, caldav apk, caldavsync, caldavsync.apk, caldav sync apk, caldav, caldavsync beta, caldavsync beta.apk, caldav sync beta.

Modifiche recenti in questa versione

Please send me an email to instead of writing a comment if something does not work.
Also, please check if you need the workaround app (see the app description).

new in 0.4.26

add and international GMX domains

new in 0.4.25

fix OAuth2 authentication with Google
send better user-agent string

new in 0.4.24

minor fixes & improvements

new in 0.4.23

start the transition to our Open Source *DAV library:
add privacy policy
some fixes

Commenti e valutazioni per CalDAV-Sync
  • (54 stelle)

    da cbrace il 04/05/2013

    I configured this Android app for my OwnCloud server and it works flawlessly. Nice work!

  • (54 stelle)

    da lori pino il 14/10/2014

    Semplicemente funziona. Sarebbe bello avere la sincronizzazione push per sincronizzare solo e immediatamente quando serve.

  • (54 stelle)

    da Manuel Bovo il 23/08/2014

    Replacement of Google calendar. (You need an account on caldav service like owncloud or the like)

  • (54 stelle)

    da ads73ads il 22/06/2014

    Stable and feature reach

  • (54 stelle)

    da Andrea Giovacchini il 02/06/2014

    It syncs perfectly with Davical and always works. Never had a problem in two years of use.

  • (54 stelle)

    da Claudio Barbarisi il 09/03/2014

    Un must se volete sincronizzare con il calendario Mozilla.

  • (54 stelle)

    da Emi Labbo il 14/01/2014

    sincronizzato col mio server personale senza problemi.

Altri commenti