With the SONA app, researchers and urban planners collaborate more effectively, engage participants and express opinions. In workshops, participants register via the mobile-first app and create their own «planets» to visualize priorities. Each planet’s color distribution reflects flags placed on key topics: Usage (yellow), Mobility (blue), Participation (red), Freedom of movement (brown) and Social structure (green). Individual concerns can thus be compared and discussed. The results had been presented as a scientific poster at the “Klybeck Plus” participation event and at the AAL Forum in Portugal.