WP Event Manager is on about 20,000 sites. The core plugin is free; recurring events, ticket sales and registrations are paid add-ons. If you're leaving it, or just want your events out in a form another tool can read, here's how it stores them.
Source: [Dev.to](https://dev.to/jeffreyinman/moving-off-wp-event-manager-whats-in-your-database-and-what-breaks-1b6m)