Good evening Alessandra and welcome to the Events Calendar forum!
Thank you for your interest in our products and we’ll be glad to answer your question.
The Event Tickets plus includes 1 year upgrades and support for one year. Does this mean that every year I have to pay 89U$ to keep using tickets Pluz?
The answer is no, you don’t need to pay 89US$ every year to keep using Tickets Plus.
But it means that you will no longer have access to updates and awesome support for it.
It also means that we cannot guarantee the non-updated Tickets Plus plugin will remain compatible with future versions of the Events Calendar free plugin.
In other words, provided you don’t update the Events Calendar free plugin after your license expires, you can continue to use it as long as you want.
That being said, most users love getting the latest updates, features and compatibility as well as access to continued support 🙂
Let me know if that answers your question.
Have a great day!
Geoff B.