%0 Generic %A López-de-Ipiña, Diego %A Aguilera, Unai %A Pérez-Velasco, Jorge %T Collaboration-Centred Cities Through Urban Apps Based on Open and User-Generated Data. Springer %J 0302-9743 %D 2015 %X This paper describes the IES Cities platform conceived to streamline the development of urban apps which combine heterogeneous datasets provided by diverse entities, namely, Government, citizens, sensor infrastructure and so on. Particularly, it focuses on the Query Mapper, a key component of this platform devised to democratize the development of Open Data based mobile urban apps. The advantages from the developers’ perspective brought forward by IES Cities are evaluated by describing an exemplary urban app created on top of it. This work pursues the challenge of achieving effective citizen collaboration by empowering them to prosume urban data across time. %~