Hello,
Thanks for the interest in our plugins.
All the plugins are separate, each one has its own features and if you would like both Community Events and Pro features you will have to purchase each one.
All plugins only require the free version of the Events Calendar to use.
If you have more questions about our licenses we can help out or check out these articles here for most of your questions:
https://theeventscalendar.com/knowledgebase-category/purchase-install/
Thanks