sync calendar and contacts without iCloud in Mavericks How can I sync calender and contacts in Mavericks and iOS 7 without using iCloud (or any cloud for that matter)? Is the only option really to setup a CalDav and CardDav server in my local home WiFi network? If so, how do I do it? Will I be needing a dedicated machine for the server (I just have one iMac)? Will all my devices automatically be able to sync once they are connected to the local WiFi? Do you know of any good step by step tutorial?
I wrote a small open source app for iOS and OS X to do basic calendar synchronization over USB on Mavericks. The iOS app has been submitted to the AppStore and is currently waiting for review.



Update:

I had to rename the app to get accepted, but it is in the iOS AppStore now:

https://itunes.apple.com/us/app/devicesync-for-ios/id737867459?mt=8

Please read the AppStore app description before using it!

You have to get the corresponding OS X app from here
(Hold ctrl key while double click to open and to get past the "unregistered developer" error).

See DeviceSync-for-OS-X and DeviceSync-for-iOS at github.

This app is open source and hence a collaborative effort. If you are a developer or know some iOS developers, feel free to add missing functionality (send a pull request at github).