At the end of the trial period the credit cord on file will be charged for the upcoming billing period.  You can cancel anytime prior to the end of trial and nothing will be charged.

Our plans are simple, track your site and don't worry about the cost changing based on the number of pageviews.  We can handle millions of daily pageviews, but we do ask that you let us know in advance if your site will exceed 1,000,000, so we can set up things to handle it.