Citymapper is a transit app available on iOS and Android that combines open data and great design to help make cities easier to navigate and explore. Citymapper set out to reinvent the urban transit experience by providing features like trip planning, realtime departure data, weather info, alerts and basically everything a commuter needs to navigate their city. The app hosts transit data from many of the world’s most traveled cities, including London, New York, Paris, San Francisco and Berlin just to name a few.
While the app was able to provide its users comprehensive data about their most traveled routes, the team found that Twitter was the source that offered the freshest and most complete transportation alerts in cities like San Francisco. Most cities have interesting Twitter feeds from transit agencies, and the team felt they should be integrated into the transit app for user knowledge and convenience. Citymapper wanted to integrate the power of Twitter’s realtime updates and shared public information, while also ensuring that its users experienced a stable, crash-free app experience.