It appears to be a website to log in and track flare symptoms so that you can generate a report and bring to your doctor and also maybe figure out triggers, etc....
Its in its beta form and free and it states that everyone who signs up now that it is in beta will be able to use it for free for the life of the website.
I am going to tinker with it a bit and see if I like it, thought others may find it helpful to them. I figured it can't hurt, but knowing me I will get bored with it pretty quick even though it seems simple enough...
-Kristina