In a development process, mobile user interface (UI) design is one of the essential part in the creation of mobile apps. Mobile UI considers input, contexts, constraints, mobility and screen as outlines for design. The user is the prime focus of interaction with their device, and the interface entails components of both software and hardware. In this process, user input allows the user to manipulate the entire system, and this is reflected in the output of the device to the system to indicate the effects of the users' manipulation. The Mobile UI design constraints features limited attention and form factors, for example a user's hand(s) size specific mobile device screen. Mobile UI uses and contexts signal cues from continuous user activity, which helps to obtain user location and scheduling. This facility can be shown from user interactions within a mobile app. In a nutshell, mobile UI design's goal is mainly for an easy understanding and user-friendly interface. The UI of mobile apps should consider minimize keystrokes, be task-oriented, and limited attention of users with a minimum set of functions. All this functionalities are supported by the mobile enterprise application platforms and integrated development environments (IDEs). AICT is undoubtedly the fastest growing app development company in Durgapur which provides mobile app development services, android app development and other web related developments and services.