Hi,
Thanks for the interest in our plugins.
Both Pro and Community Events are separate plugins and you need to purchase them both. If you want Pro Features and Community Events Features.
They only require the core version of the Events Calendar found for free on WordPress.org:
The Events Calendar
So you can only buy Community if that is what you are looking for.
One point to note is Community does not have recurring events or additional fields unless you also have Pro.
Let me know if you have any follow up questions.
Thanks