Each device which a person interacts with has naturally restrictions. This also applies to mobile devices. A major limiting factor is the size of the active area of the display element. Solutions of that handicap often require user interaction. Increasing the size of the display unit increases the size of the device itself. The size-larger devices reduce comfort of their normal use. In this paper we present our experience in application implementation for mobile device. We have encountered some problems related to visualization restrictions. To exploit the technological potential of a mobile device we have implemented an application which had to improve motivational aspects by gamification.