UP375 is a drawing app that allows users to draw and overlay images on top of existing images. A GIF recreating the creative process is then created. We launched it for a client in link with the 375th anniversary celebration of the city of Montreal, where they use the app to overlay futuristic images on top of heritage picture of Montreal. The app's fluid interface and simplicity has conquered the most demanding of users: kids and teens that participate in UP375's creative workshops. Sidekick Interactive has, once again, showed its great innovative capacity by creating a unique and attractive experience.