Many interesting social studies can be done by asking people about 
what they think, feel or experience the moment certain events occur 
in their daily lives. These studies can be conducted based on the 
event-contingent protocol of the Experience Sampling Method. We 
have implemented this protocol in Crowdpinion – our software tool 
consisting of a web panel where the researchers can set up and 
control their studies and a mobile app for the responders. In order 
to extend the users’ motivation beyond the will to contribute to 
research, we have applied some gamification elements based on 
fostering curiosity by gradually revealing the big picture from the 
overall study. In this paper we describe the concepts of 
Crowdpinion as a research tool, our approach to gamification, how 
we tested it in the beta version and present plans for future 
improvements.