I haven't used it, but here is a brief description:
"If you've ever tried to follow multiple forums on a mobile browser, you know how inconsistent of an experience it can be. We save you time and make it easy to follow all of your favorite online communities on your mobile device."
"You can monitor, post, and add photos to all your favorite forums, all in a single app. You can even elect to receive push notifications on your favorite threads."
"Tapatalk can also help you discover new forums based on the topics you like to follow."
-The forum administrator must activate tapatalk to their website, so jrol22 is likely trying to find out before buying the app.
http://tapatalk.com/