Chirrpy is an online platform created by three event professionals. Planners can use Chirrpy to manage ticketing, promotion, and check-in for their events. The system provides a self-service tool to create an event website that can include custom fonts, colors, text, photos, and videos. Details can be instantly shared through email, Facebook, Twitter, and LinkedIn, and organizers can track ticket sales, revenue, and other data in real time. Chirrpy can be used for both paid and free events, where ticketing may be necessary for crowd control. In addition to the Web interface, a Chirrpy app for iOS offers the same functions and adds mobile check-in capability.