With UCHECK.IN application, discover events with which you will be able to interact via your mobile. Discover messages and personalized offers that are automatically displayed by going to the specified locations. - At events, fairs, conferences, get exclusive messages depending on which room you are in, the video you are watching or music you hear. - In the theater, concert where you are, with your agreement UCHECK.IN detects your presence and displays games and exclusive offers from the site.