It is, of course we can't test with all dynamic elements. Feel free to send us compatibility request on our pre-sale forum or on the plugin directory support forum.
Yes totally free of charge, feel free to install, update and even ask us questions on the WordPress plugin directory forum, if needed.
We have detected that you came here from a website that distribute non official sources of our extensions. As we care about all our users, including hackers :) we want to warn you before you do something you will regret.
Is it worth it using nulled extensions? Well we don't think so, it’s a real problem for many reasons: