Posse designs mobile applications for businesses in the United States of America. by using open source technology, this firm is able to accelerate the entire development process. Additionally, open source utilities significantly reduce the costs of design and management of IT solutions. Android applications are usually created with the implementation of Java and C++, which are some of the most powerful scripts on the web. Such syntax might have to be combined with HTML5 and CSS3 in order to enhance web pages for smartphones and tablets. Posse has been closely following the evolution of the Android operating system. Throughout the years, this agency has launched custom apps for the Gingerbread, Ice Cream Sandwich, Jelly Bean and other early versions of the platform. In recent years, this web design firm has optimized Android apps for the Marshmallow and Nougat editions. Additionally, apps have to be engineered to work well with Samsung and HTC hardware.