This thesis looks to explore from a user-centered standpoint, which mobile application features are relevant in the social integration of new arrivals in Sweden. Mobiles are used by individuals who are moving away from home not only to stay connected to their close ones but also as a way for empowerment and adaption in their new homes. Access to information helps immigrants to face the new challenges new host societies present. Nowadays mobiles and more specifically smartphones are becoming the principal sources for new arrivals to obtain information. As mobiles become more common among immigration groups, governments and institutions are turning to them as new ways for addressing migration challenges such as integration. This thesis, through a participatory design study, explores possible mobile digital application features that could be relevant in the social integration of immigrants. The goal is to develop through a cooperative and co-design method a prototype of a mobile application that can fit better with the necessities of new arrivals and can also facilitate better ways for social integration. As a result, it could be determinate that features that provide users the ability to gather information from one source are the most important for immigrants. Additionally, users want to be able to have control over the information they are receiving according to what phase they are at the integration process. Also, digital features seem not to be enough and digital and offline cooperation are suggested. In the process, participants provided innovative ways on how integration challenges can be addressed.