GetActive aims to get people more active by showing data from multiple providers and allowing easy, one-click booking. It uses data from imin, who also built it on behalf of London Sport; imin are a data aggregator for physical activity, pulling in data from organisers including British Cycling, Playwaze, Goodgym, OurParks and GLL.
My role in the development was the initial creation of the interface (I joined imin in October 2015, when there wasn't even a GetActive repo in the source control). I had responsibility for the front-end CSS and JavaScript (it was built on React.js), much of which still exists in the codebase today.