Rork positions itself as a specialized prototyping tool for mobile developers working within the Expo and React Native ecosystems. The application serves as a companion utility that bridges the gap between code development and real-device testing, eliminating the need for complex simulator setups or physical cable connections during early development phases. The core functionality revolves around three key operations: scanning QR codes generated by Expo development servers, rendering live application previews on iOS devices, and generating shareable links for collaborative review. The application integrates directly with Expo's development workflow, automatically detecting running Metro bundler instances on local networks. This integration allows developers to instantly view changes made in their code editors on actual mobile hardware, providing more accurate performance and rendering feedback than simulator-based testing. User experience centers around a minimalist interface featuring a persistent QR scanner view, recent projects list, and sharing options. The scanning functionality proves particularly effective in studio environments where multiple developers need to quickly test builds across different devices. Real-world usage patterns indicate the app serves primarily as a validation tool during active development sprints rather than a comprehensive testing platform, with most sessions lasting under five minutes per prototyping cycle. With no user reviews currently available, the application's reception remains undocumented in public forums. The absence of feedback suggests either limited adoption or recent market entry, making objective assessment of real-world reliability challenging without firsthand testing data from development teams. The application demonstrates clear value in accelerating preview cycles for React Native developers, though its utility remains narrowly focused on specific technical workflows. Limitations include platform exclusivity to iOS, dependency on Expo's development environment, and absence of debugging tools beyond visual rendering. Ideal use cases involve small to mid-size development teams requiring rapid prototype sharing during early-stage application development.