ownCloud and other CalDAV serversYou can sync CalenGoo via the Android calendar with ownCloud (but only events, not tasks yet). Just turn "Settings > Accounts > Android" on in CalenGoo (it is usually turned on by default) and sync your Android calendar with ownCloud. To sync the Android calendar with ownCould you need an app that performs the sync between the Android calendar and a CalDAV server like ownCloud. E.g. you can use one of these:
- CalDAV-Sync (€2,59)
- Easy DAV for ownCloud (free)
- Caldav Sync Free Beta (free)
- CalendarSync - CalDAV and more (€8,93) (free trial)
- DAVdroid - CalDAV/CardDAV Sync (€3,79)
The paid apps are often more current and better supported. But it seems that the free ones also work good for many people.
The app will then sync the Android calendar with ownCloud/CalDAV so that you don’t need to configure anything in CalenGoo.
Similar to ownCloud the Yahoo calendar also uses CalDAV. As you can see on Yahoo’s support page here you just need a CalDAV app and have to enter the address https://caldav.calendar.yahoo.com if the app does not support Yahoo accounts directly. You can find further information here: Yahoo Calendar on Android devices
There are also apps that specialize on syncing with Yahoo, e.g. this one:
- SmoothSync for Yahoo!® Calenda (€2,55)