The main goal of this project is to increase the opportunities of intergenerational interaction in order to enrich retirees’ social life in the near future. I started with broad research, and then narrowed it down to the specific design proposal. Through my design process and methods I developed the application-Together, using “same interest” as the connection between old and young, creating a digital tool for retirees to hold their preferred activities for the younger people to join.The development process is mainly focused on simplification. I eliminated or combined functions during every iteration according to the core needs of users. The direction and decisions I have taken were affirmative according to positive feedback from users and the experts.