We develop and test our plugins with the latest version of WordPress and the default WP theme. With that said, there shouldn’t be any reason you can’t get our plugin to jive with your theme.
I won’t be able to provide any support here on our Pre-Sales Channel, but if you need assistance for the free version, you can reach out via our free support WordPress.org forums.
Thanks for reaching out and we hope to see you in the Premium forums someday soon!