Jorte Sync is an application that can sync information from various services with Jorte Calendar. For example, When you Sync with Facebook and Foursquare, You can see the content of your friend's posts or your own displayed in Jorte.
The day there is a post from friends that you have selected, their icon and posted photos can be displayed in Jorte.
IMPORTANT Update: At the end of April Facebook will update its API, this update limits which information Jorte can access. What does this mean to you as a Jorte Sync user? If you used the Facebook post sync feature: You will be required to login again with Jorte Sync and grant access to syncing your Facebook Posts. In addition you will now only be able to sync posts from Friends who are also using Jorte Sync to sync their Facebook posts.
Previously you could select which of your Friends who are on Facebook to sync their posts with Jorte Calendar, this is no longer possible with the updated Facebook API. Unfortunately In practice this means it will no longer be possible to sync many of your friends & family's posts.
This change has been made by Facebook, NOT Jorte, if you dislike this change you may contact & file a complaint with Facebook, you may let them know you dislike their updated API and how it affects other applications such as Jorte Sync. If you sync other services such as Flickr or Instagram with Jorte Sync:
The Facebook API update will have no impact on syncing with other services that Jorte Sync supports.