Any dates you add to your transactions can sync automatically to your calendar. Here's how to sync those up! Once you have synced, all events from all your transactions moving forward will continue to automatically sync.
Apple Calendar/iCal
Super simple! Just go to https://app.realscale.com/calendar, click the 'Subscribe' link and the system will walk you through the rest.
You can also alternatively copy & paste the link shown below.
Open your calendar, click 'File' then 'New Calendar Subscription'.
Then paste in the link and click Subscribe. Then you're done!
Google Calendar
Go to https://app.realscale.com/calendar and copy this URL.
Then, go to your Google Calendar. On the bottom left, next to 'Other Calendars', click the '+' sign, and click 'From URL'
Paste in the link you copied, then click 'Add Calendar'. Then you're done!
Zimbra
Go to https://app.realscale.com/calendar and copy this URL.
Open a new tab in your browser, then paste in the URL and hit 'Enter'. Your browser will then automatically download the .ics file.
Then, follow the process outlined here on Zimbra's support site to upload that .ics/iCal file to your Zimbra account: http://docs.zimbra.com/desktop7/help/en_US/Calendar/Importing_your_iCal_calendar.htm