The first digital edition of ESA’s Space App Camp was held in September 2020.  With the support of experts from the sectors of Earth observation, artificial intelligence and business, 20 app developers from eight European countries were asked to devise an innovative app using Earth observation data in one of five subject areas: smart green cities, food security, health, tourism and coastal monitoring. In this short video, participants talk about their experience, what they learnt and what they hoped to achieve.