ARki is a real-time augmented reality visualization service for architectural models. It incorporates AR technology into architecture by providing 3-D models with multiple levels of interactivity for both design and presentation purposes. ARki can be used on any IOS/Android device. It simply overlays 3-D models onto existing 2-D floor plans, but also provides several other interactive functionalities, including real-time shadow analysis and material selection. Users can capture and record custom views of models in both movie and 3-D still format, and share their content via email or social media with a few clicks.