According to the site the 90$ price apply when: "For use on a simple webpage that is not considered a web application. A web application is a website that has

According to the site the 90$ price apply when: "For use on a simple webpage that is not considered a web application. A web application is a website that has customer specific data or charges for its use. This requires a Developer license." http://shop.highsoft.com/highcharts/highcharts-single-website-license.html http://shop.highsoft.com/highcharts/highcharts-single-websit...