APP Design is a software development and system integration company based in Chicago. Founded over 20 years’ ago, we specialize in full cycle web application development including databases, ETL, data warehousing, and data analytics. As an agile organization, we respond quickly and accurately, to address changes in technology, legislation, and in the marketplace to keep your business systems up-to-date and competitive. Our applications are capable of handling millions of transactions for thousands of users with no unscheduled downtime. We pay particular attention to security, reliability, and linear performance scalability. We deploy our software on multi-node clusters hosted on web farms, glass house, and clouds. Our software has a proven track record of standard compliance and security.