The IN is a solution for expo centers to solve the problem of indoor positioning, finding a route to the desired object and getting information on objects. The IN is a solution for expo centers with the function of a multimedia interactive guide-navigator. The solution solves the problem of indoor positioning, finding a route to the desired object, getting information on objects. With the app, visitors can navigate indoors at the event, get multimedia info on objects and premises, use in-app text search. An essential part of the app is a built-in chat where visitors can communicate, make appointment indicating a place on the plan, contact exhibitors. With our solution, we can quickly build client-oriented applications, deploy customized solutions on the customer's site, and also brand them if necessary.