Interchange Offline Metro

Every metro line in your pocket, no signal needed.

Interchange is an offline reference for metro and urban rail networks. Pick 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.

Station lists come from the timetable feeds that transit operators publish as open data. Fixes reach the app on their own, without an update from the App Store.

Pro

A one-time purchase adds a home screen widget for a pinned line, saved lines, station-to-station routes and the nearest station. Everything else is free.

Data sources

Each network's operator, feed and licence is listed inside the app under Settings > Data sources.