Good evening Renee and welcome to the Events Calendar forum!
Thank you for your interest in our products.
We’ll be glad to answer your questions.
The Events Calendar Pro is an awesome product, but it mostly adds premium features such as:
- Recurring Events
- Additional views
- Advanced widgets
- Shortcodes
I recommend you take a look at the table in the following page to get a complete list: https://theeventscalendar.com/product/wordpress-events-calendar-pro/
To be able to sell Tickets (via a WordPress E-commerce solution of your choice – such as WooCommerce), you will need to use our Event Tickets Plus premium add-on: https://theeventscalendar.com/product/wordpress-event-tickets-plus/
It is not necessary to have the Events Calendar Pro to run our Event Tickets Plus add-on.
Finally, if you are interested in purchasing several of our add-ons, I recommend you take a look at our bundles: https://theeventscalendar.com/bundles/
Let me know if that helps.
Have a great day!
Geoff B.