#6 of 10 Top Web App Development Firms of 2017 - Curotec has a digital tool box that includes the latest open source utilities and other resources. This American IT agency deploys HTML5, Java, jQuery and C++ on the back ends of templates that ultimately become functional applications. Whether it's for Android or iOS, this company can write smooth and cohesive code for any mobile operating system. Curotec is also fluent in numerous programming languages that define the architecture of apps for Microsoft Windows, Linux and macOS. Objective-C, JavaScript and PHP are usually embedded into the framework of publications for the world's leading operating systems on desktop computers, laptops and notebooks.