RSence is a unique development model first-hand for real-time web applications. RSence consists of separate, but tigtly integrated data- and user interface frameworks. RSence could be classified as a thin server - thick client system. The user interface framework of RSence is implemented in high-level user interface widget- and system management api's written in JS and CoffeeScript. It support multitasking and event-driven models for applications, yet a minimal resource footprint. It's intended to be used as a direct, networked zero-install, platform-agnostic replacement, where native GUI applications would have been used traditionally. The server, written in Ruby and C, is purely a resource addon and event-driven data framework, relatively light-weight on resources and endures heavy loads