An XML parser is a software module to read documents and a means to grant access to their
“In some ways, programming is like painting. You start with a blank canvas and certain basic raw materials. You use a combination of science, art, and craft to determine what to do with them.” – Andrew Hunt
XML and Ajax Programming in an intrinsic part of application development for mobile, both for Android and iOS apps. XML is part of many frameworks that are used by these platforms, and Ajax is a concept that also underlines the majority of modern server side languages such as node.js and other similar. If you want to hire freelance app developers, there is a great post on collectiveray.com that compares and contrasts various websites to see which ones are best to use.