Tackling gender inequality is one of the 17 Sustainable Development Goals. It has now been recognised world-over for the critical role it plays towards ending poverty. To achieve this, accurate data and insights are required to understand the challenges facing girls. TEGA is a mobile based, peer-to-peer research app used by some of the world’s leading development organisations to provide safer, faster, more scalable and authentic research around the world. TEGA empowers adolescent girls aged 16-24 to conduct interview research within their own communities - including with men and boys. This unique approach unlocks the open and honest conversations that might otherwise be lost or not included when collecting data in traditional ways. Insights collected by TEGAs help organisations better understand the reality of girls’ lives, meaning better designed, more targeted development programmes that have real impact. Co-created with girls, TEGA integrates technology that can operate in places with poor network connection. It has fast translation capabilities, data encryption and rapid emergency response to ensure the safety and data protection of all participants.