Interchange Offline Metro

Every metro line in your pocket, no signal needed. Interchange is an offline reference for metro, subway and urban rail networks. Type a city, pick a line, and read the stations in order with every interchange marked. All of it is stored on your phone, so it works in the tunnel, in airplane mode, and on a foreign SIM with no data. WHY NOT JUST USE A MAP APP Map apps need a connection, and their offline areas expire. Interchange never needs one. It shows you the whole line at a glance, the way the sign on the platform does: this station, the next one, and where to change. 218 NETWORKS, 65 COUNTRIES Over 16,000 stations, including New York, London, Paris, Tokyo, Seoul, Shanghai, Beijing, Hong Kong, Singapore, Bangkok, Kuala Lumpur, Delhi, Mumbai, Dubai, Istanbul, Madrid, Barcelona, Berlin, Munich, Vienna, Prague, Milan, Rome, Amsterdam, Stockholm, Copenhagen, Moscow, Sydney, Toronto, Montréal, Mexico City, São Paulo, Santiago and Buenos Aires. New cities and station changes arrive on their own, no app update needed. WHAT YOU GET, FREE • Search by city or country and jump straight to the network • Every line as a clear vertical strip: stations in order, interchanges marked, direction shown • Tap an interchange badge to jump straight to the other line • Search any station, in English or the local script • Official line colours from each operator's own data • Reverse direction with one tap • A short How to use guide built in • Dark mode and Dynamic Type INTERCHANGE PRO, ONE-TIME PURCHASE • Home screen widget showing a pinned line, tap it to page through the stations • Saved lines, and the app reopens where you left off • Station to station: which line, where to change, how many stops • Nearest station from where you stand, no signal needed Everything a lost traveller needs stays free. ABOUT THE DATA Station lists are built from open data: the timetable feeds and route services transit operators publish, and OpenStreetMap and Wikidata, each checked against independent station counts before it ships. The data is checked for changes every day. Each network's source and licence is listed in the app under Credits. No official map artwork is used. Questions or a city you would like added: jasonlzpbiz@gmail.com