ContactSync - CardDAV and more

ContactSync - CardDAV and more

1,000 - 5,000 downloads

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ContactSync is an Android app which allows you to sync your Android contacts with CardDAV, FTP, HTTP, WebDAV servers or local files (stored on the device or e.g. as a mail attachment). There are also a lot of additional features available. All this can also be done independent from the Google services.

Do you want to check out the app for free? You can test the app and all its features without any limitations by installing this free special test version here:

•Using a self-created parser which supports complex and more features than other contact sync applications.
•Supporting vCards in all availbale versions (4.0, 3.0 and 2.1).
•Supporting much more android contact fields then other apps (IMPORT and EXPORT).
•Contact photos can also be automatically be loaded from the web!
•Importing contacts stored on the android device (.vcf or .vcard).
•Importing multiple .vcf files at once.
•The app will be associated to this files too.
•Importing contacts which have been attached to mails.
•Backup all the contacts and groups available on your device to .vcf files.
•Fingerfriedly user interface.
•Load, parse and sync contact infomration direct from the Internet from different sources.
•Supporting different ways of handling double contacts:Ignoring, Replacing, Merging
•Supporting groups (native groups in vCard 4.0 and mapping of categories in vCard 3.0 and 2.1)
•Automatic background sync
•Supporting network sources for contact information.
•Supporting CardDAV (supports syncing from and to a server (two way sync))
•Easy and simple configuration through automatic addressbook detection (CardDAV)
•Supporting HTTP/HTTPS (supports syncing from and to a server (two way sync))
•Supporting FTP/FTPS (supports syncing from and to a server (two way sync))
•Supporting WebDAV/WebDAVs (supports syncing from and to a server (two way sync))
•Supporting two way syncs to local files (useful if you e.g. use that in combination with a cloud data store)
•Supporting self signed certificates
•Multi-language: Currently English, German, French(Thx Yann).
If you are interested in translating the app in other languages please contact me and I will then send you an invitation to a translation project.

Interesting features for large-scale orders:
•Setup and configure your server connections through adb
•Licensing for large-scale orders

The app handles more contact/group data then other apps e.g.:
address, birthdays, anniversaries, custom events, categories, groups, notes, email, instant messages, name, nickname, organizations, photos (also high res), relations, phonetic names, websites, roles, titles, Apple specific extensions, Mime dir groups, Android specific extensions, self defined custom labels, favorite contacts

The app has been sucessfully tested with more then 30 different CardDAV Servers like Apple iCloud, Marketcircle Daylight, or Owncloud. You can find a list here:

You can find detailed information to the permissions at my website.

If you mention any problems please contact me at If you add problems to to comments I can NOT help you because I need some information about your configuration and so on. I'm sure that I can help you to reach your goals and that I can provide the necessary support :)

Tags: file extension contactsync, .contact, carddav synology, contacts2vcf, contactsync calendarsync, .vcard to .contact, synology app calendar, kontakte exportieren *.contact, 4.0 kontaktfelder, app .contact.

Recently changed in this version

If you mention any problems please contact me at I'm sure that I can help you to reach your goals and that I can provide the necessary support :)

additional encryption of server configurations
optional guidance for the professional configuration
supporting additional network encryption protocols
additional guidance for automatic CardDAV address book detection

Comments and ratings for ContactSync - CardDAV and more
  • (45 stars)

    by Harvey Braun on 14/01/2015

    This app is doing exactly what I need it to do and without any glitches so far. CardDav sync is what I am using it for currently and have found it very reliable. Support has been excellent and fast as well for a vcard sync glitch I was having with the mail server. Highly recommended

  • (45 stars)

    by tony pateman on 04/11/2014

    awesome support really helpful and the app works well

  • (45 stars)

    by John Martorana on 01/10/2014

    Love this app - perfect for Owncloud. Very helpful folks too! Highly recommend!

  • (45 stars)

    by Francesco Grassini on 09/08/2014

    It does what it says and the developer was most friendly helping me to configure my yahoo account. The idea of a trial version to check if it works is great. Even if it is cheap it is always nice to be able to check if it works for me... And this was the way I discover a developer that answer questions and provide support promptly.

  • (45 stars)

    by Oliver L on 14/06/2014

    the app performed a dysfunctional backup + restore, slowed down until the google play refund time passed. contact group data were not restored. would ask for refund if i could.

  • (45 stars)

    by Andrew Livingston on 23/04/2014

    Had an issue with contacts on my Kerio Connect server not being synchronized and contacted the developer. She had it solved and me up and running in less than an hour.

  • (45 stars)

    by Hector G. on 30/03/2014

    I downloaded this app without much hope that it would do what I wanted. Boy was I wrong. It did everything I wanted and more. I want to thank Annemarie for her help. She even helped me track down an error on my owncloud server. I received customer support less than 5 minutes after I sent the initial email and on a Saturday on top of that. Now I can two way sync my contacts even with high res pi

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