Today’s smartphones can unlock the full potential of crowdsourcing and take eParticipation to a new level. Users are allowed to transparently contribute to complex and novel problem solving. Engagement of citizens is still challenging but the proliferation of smartphones with geolocation have made it easier than before. In this paper we will introduce the ZmapujTo project - a reporting platform in the form of a mobile application and responsive web page intended for citizens to report civic issues. We will also describe used technology stack and system architecture. In addition, we will introduce “Ukliďme Česko” (Clean up the Czech Republic) which is a maiden event taking place in the Czech Republic. We explain how ZmapujTo is applied in this event and the ICT tools that are offered to volunteers and organizers for communication and management of the event.