  We briefly present the design and architecture of a system that aims to
simplify the process of organizing, executing and administering crowdsensing
campaigns in a smart city context over smartphones volunteered by citizens. We
built our system on top of an Android app substrate on the end-user level,
which enables us to utilize smartphone resources. Our system allows researchers
and other developers to manage and distribute their "mini" smart city
applications, gather data and publish their results through the Organicity
smart city platform. We believe this is the first time such a tool is paired
with a large scale IoT infrastructure, to enable truly city-scale IoT and smart
city experimentation.
