This application represents a QR code scanner that includes a score management system in order to control the actions made by user. Application is created for a special expositional event – where the guests will be able to scan various QR codes and earn points in this way. QR codes for the guests will be provided as stickers on different places – and the task of the users will be – to find and scan all the hidden stickers. According to the results of scanned QR codes the winner will be announced after the end of the event.