This document summarizes a new app called Collide that allows users to easily share photos from events in real-time. The app creates a shared timeline where attendees can upload, view, and interact around photos from the event only with other attendees. This simplifies photo sharing for events and provides a way to interact with people at the event. The creators believe the app fills a need not met by other platforms by focusing only on sharing at live events without social connections like friends or walls.