Wasserman(2010) points out that the mobile user interface paradigm is based around widgets. touch, physical motion. and keyboards (physical and virtual) rather than the familiar WIMP (windows, Icons, Menus, Pointer) interface style of operating systems for Personal computes. He contends that the Ux is also by other issues related to the device itself (e.g., weight and size). Given the different types of ios-based devices, designers should consider physical aspects of each type of device when designing the interface of the mobile learning apps.