Metro Retro is a web application created to help teams run productive, engaging and fun retrospectives. It uses real-time updates, adaptable templates and a quirky sense of humour to emulate as closely as possible the feeling of a session run with paper based post-its on a physical whiteboard. It's great for distributed teams as well as co-located teams! Users join a shared board and add post-its to the various categories as they would in a traditional retrospective. Initially, post-it content is hidden to provide users a way of creating their ideas in private. Then, when they are ready, the users reveal their post-its to each other and discuss the ideas as a group. There are various tools available to aid presentation and discussion including post-it highlighting, emoji reactions and pointing arrows. Once the discussion is over, the contents of the board can be exported and archived in other tools (e.g. company wiki) or just left as is - boards are always available to come back to later.