Cobook Contacts is an intuitive, engaging address book.

Solve the problem of contact management with Cobook Contacts and its simple interface and powerful syncing and integration possibilities.

Keep your contacts:

• Organized with tags. A simple tagging system means finding particular contacts is as easy as can be.
• Automatically up-to-date. Keep your contacts up-to-date by syncing them with Facebook, Twitter, or Xing profiles.
• Within reach. Quickly access your contacts from the menu bar on your Mac or on your iPhone or iPad with the iOS companion app.

Note: Cobook is free to download, but contains several in-app purchases which significantly extend its functionality, so we've listed it as a demo.