Boxzilla Pageviews allows you to trigger your boxes once a visitor reaches a certain amount of pageviews on your site (during their current session).
After installing and activating the plugin, two important things happen.
Your visitor's pageviews will be tracked internally
Whenever your visitors views any page on your site, the plugin will keep track of the total pageview count. At the end of each session, this number is reset.
A new "pageviews" trigger option
On the admin page where you configure your box, a new trigger option appears that allows you to toggle a box once a visitor viewed a certain number of pages.