Rover IDX has always offered a 30 day, fully functional free trial. Just download the plugin from the WordPress Plugin Repository, activate the plugin, and add rover_idx_full_page to a page.
Check out our blog post on how to get up and running in 52 seconds
During the 30 day free trial, if you have questions, just send us an email or give us a call. We are happy to help you get up and running.