Hi Kyle,
Thanks for checking out our plugins!
You do not need Events Calendar Pro in order to use Eventbrite Tickets. However, as you pointed out, Pro does add additional features such as views (week, photo, and map) and shortcodes.
Eventbrite Tickets does require our free events plugin, The Events Calendar. So, as long as you have this installed and active on your site, you’ll be all set to start using Eventbrite Tickets 🙂
We do offer full refunds within 30 days of purchase, so if you’d like to take Eventbrite Tickets or Events Calendar Pro for a test run, feel free to do so! Please let me know if you have any additional questions.
Thanks,
Jennifer