How can I synchronize my calendar in portatour® with Outlook? What is the name of the add-in for Outlook?

In your Outlook calendar, subscribe to the portatour® calendar. Proceed as follows:

1. In portatour®, go to Options > Calendar sharing (see Calendar sharing).
2. Click on Share calendar.
3. Copy the shown iCal URL of the schedule to the clipboard by clicking on Copy link.
4. Create a new internet calendar in Outlook by selecting File > Account settings > Internet calendar > New. This procedure may vary depending on the Outlook version.
5. Paste the iCal URL from the clipboard into the input box, e.g. with the CTRL+V key combination.
6. Save by clicking Add and then OK.

A new entry appears in Outlook in the left navigation bar at Calendar. This entry will be updated in Outlook when you click Send/Receive, and every 15 minutes at the most if you use the default settings.

portatour® calendar sharing is unidirectional. It is not possible to automatically synchronize changes back from Outlook to portatour®.

There is no need for an Outlook add-in for this.