Sync Galaxy calendar app with eM Client calendar

Can I sync the eM Client calendar with the S Planner app on a Samsung Galaxy smartphone?

Hello Dave,
if you mean the Calendar from Local folders, then no, that one is saved only in your computer and isn’t synced to anything.
If you use a different calendar account (google calendar, iCloud calendar, CalDAV) then it should be enough to sync your app to the same server.