fruux

fruux is a free service that takes care of your contacts, calendars and tasks so you don't have to. Never manually copy contacts and calenders between your devices again! Features include:

• Contact, Calendar and Task synchronization.
• Calendar sharing (read-only and read-write).
• Public calendars (shareable via iCalendar feed).

• (FEATURE) HTML Landing pages for public calendars
• (FEATURE) Referral system that allows free users to earn additional shares
• (PERFORMANCE) Improved importer performance
• (BUGFIX) Various bugfixes

Note:

• Updates are deployed automatically. If you are a current user, you don't have to do anything.
• The new fruux is no longer available as a native application, but now exists only as a Web application. It is natively supported on both Mac OS X and iOS via CardDAV and CalDAV.