You can now see when your calendar last synced to Caltrics –

To see when your calendar app last connected to your Caltrics account.  LOG IN to your Caltrics account and click ‘MY ACCOUNT’.  You will see a list of ‘Your Connections’.  This will show the calendar apps to which you have connected and the date and time of the last instance.

Seeing the date/time of when your calendar app last connected to your Caltrics account is sometimes helpful, particularly if are selecting new calendars, deselecting existing calendars, or you think you may have a connection issue. 

Unfortunately, not all calendar app providers sync at the same frequency.  Whilst Apple iOS calendars and Outlook Classic will sync every 15 min; at the other extreme, Google calendar may only sync twice in a 24-hour period.  See Calendar app sync frequency.