Ticket Validator mobile application allows event coordinators to validate tickets created using the Ticket Generator (https://ticket-generator.com) web application. Each generated ticket is equipped with a secure single-use QR Code. A QR Code is a 2D barcode that can be identified and decoded using a smartphone application. Using the Ticket Validator mobile app, event administrators and coordinators can scan the QR Code on the ticket and validate its authenticity i.e. check if the ticket is valid, invalid, or duplicate. Event administrators and coordinators will have timed access to validate tickets. Using the mobile app's quick QR Code scanning feature, event guests can be authorized quickly at the point of entry. If the administrator/coordinators are unable to scan the QR Code, it is also possible to validate tickets by entering the serial codes printed on the tickets. Please note that this mobile application is not for general use. This application is valid only for administrators of the Ticket Generator web application and invited event coordinators. To use this app, get started by creating tickets at https://ticket-generator.com for your event or request an existing Ticket Generator administrator to send an event coordinator invite.