“Especially at big frontal events, we always face the challenge of involving the audience in a meaningful way. We worked with Vopinio at our congress “Digital Society”, which was very useful for us in the backend as well as for our guests via smartphone, tablet or laptop simple and uncomplicated, and the positive feedback from the participants afterwards convinced us that we will continue to use Vopinio. ”
LENA-SOPHIE MÜLLER, Managing Director, Initiative D21