Apollo is the code name for a cross-operating system runtime being developed by Adobe that allows developers to leverage their existing web development skills (Flash, Flex, HTML, JavaScript, Ajax) to build and deploy rich Internet applications (RIAs) to the desktop.

Apollo enables developers to create applications that combine the benefits of web applications ¨C network and user connectivity, rich media content, ease of development, and broad reach ¨C with the strengths of desktop applications ¨C application interactions, local resource access, personal settings, powerful functionality, and rich interactive experiences.