Matlab Handles App Designer (HPD), FillingOut Table of Contents E2 Interactive Guide to Mobile App Design, Interactive Applications & Solutions (E2IM), Advanced Design for Apps, Application Delivery, Tools & Tools What is HPD? HPD is a global initiative focused on an open and flexible landscape for business and user community in the years ahead. Our target audiences are women, youth and women seeking to break new ground in their careers and communities. There are nearly 4,500 000 mobile app developers worldwide. HPD is committed to promoting the use of data-driven, cost-effective approaches to building, maintaining, and innovating mobile applications. HPD is fully staffed with technical, strategic, advisory, technical advisers who provide guidance relevant to the field and their industry clients.