In my own word, Design thinking is the way a designer handle complex problems in a creative and user friendly way or it a way of thinking of every designers. Implementation of design thinking using a Mobile app as a case study. This is focus on developing functional mobile app product for a music store to deliver to end user. We shall follow the FIVE step of design thinking which include. 1. Empathize: Empathizing the user and understand the problems that a musical app might be having.