Reapp is the result of the participation of Bernardo Santos, Dinis Mano and Tomás Nunes from Grupo de Escolas de Sátão in the Apps for Good 2020 competition. The idea arose within the scope of a project on sustainability, developed under the guidance of English teacher Maria Silva . The idea was to solve two concomitant problems: the problem of excess consumption and waste production and the increase in needy families due to the pandemic. Thus, it was decided to create this solution that allows solidarity stores to sell their products so that they can support those who need it most, while promoting the reuse of goods.