Both UI and UX are applied in IT sphere widely. UI (user interface) is a type of interface used to predict or explain interaction between a human and machine or device. It is about means and methods that help a user affect misc programs, machines, websites or mobile apps. Among the features UI design considers are menu, usability of buttons and display. UX (User eXperience) is used to denote user’s perception and responses arising while using a product, system or services. User experience includes all emotions, preferences, opinions and feelings, any reactions of a user, also his / her behaviour and achievements that arise before, during and after using a website, app etc. UX combines brand image, functionality, representation, interactive behaviour, user’s physical and psychological state UX is closely related with usability being applied at all stages of product creation: from planning to testing. UI and UX are of great importance for creating a good product and reliable companies and IT studios devote much time and effort to it. If you are creating a new IT product it is necessary to employ such specialists. And you can find them at AOG service. Below are few case studies. Go and see them!