Yes, both Eventbrite and Slack offer a Free Trial.
Eventbrite is designed for Large Enterprises, Medium Business and Small Business.
Slack is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
The starting price of Slack begins at $2.67/Month, while pricing details for Eventbrite are unavailable.
Some top alternatives to Eventbrite includes Cvent, Eventzilla, Bizzabo, EventBank Event Management Platform, Event Always, Ticket Tailor, TicketLeap, EventBookings, Eventene and Eventify.
Some top alternatives to Slack includes Microsoft Teams, Glip, Google Chat, ChatWork, Dialog, Office Chat, imBee, Takle, SPACE Channel and Teamwork Chat.