Hottler is a mobile hotel application developed to enhance efficient communication with guests and create revenue opportunities. Hottler is a rating booster for hotels. Getting negative feedback before guests leave helps hotels to satisfy guest’s needs and improove hotel rating on Booking.com and TripAdvisor.com. The app allows guests to use hotel’s services in their language without having to call or ask reception. Typical services: Taxi Order, Concierge Services, Wake-up Call, In-room Shopping, In-room Dining, Room Service and Tourist Information about city. Hottler it is suitable both for hostels and large hotels. This demo app demonstrates all Hottler possibilities.