Apache is a free and open-source cross-platform web server software.
Chart.js is an open-source JavaScript library that allows you to draw different types of charts by using the HTML5 canvas element.
jQuery is a JavaScript library which is a free, open-source software designed to simplify HTML DOM tree traversal and manipulation, as well as event handling, CSS animation, and Ajax.
Leaflet is the open-source JavaScript library for mobile-friendly interactive maps.
PHP is a general-purpose scripting language used for web development.
Select2 is a jQuery based replacement for select boxes. It supports searching, remote data sets, and infinite scrolling of results.
UIKit is the framework used for developing iOS applications.