Hi Vernon. Thanks for your interest in our plugins suite.
All our paid plugins are either an add-on for the free The Events Calendar plugin or the free Event Tickets plugin.
The only way to enable recurring events functionality is to purchase our PRO add-on.
You can purchase updates and support for 1 site (Personal license) or for up to 3 sites (Business license).
At this time, renewal prices are discounted, but I cannot guarantee this will always be the case in the future.
Last but not least, we have a pretty great Refund Policy so you can buy one or many of our add-ons and thoroughly test them.
Let me know if you have any follow-up questions.