西安地铁-西安地铁公交城市通 is a professional subway travel assistant app for iPhone users. It provides the latest subway route map for Xi'an in 2019, as well as information and features for subway travel such as recommended optimal transfer routes and up-to-date station information (including nearby facilities).

The app offers the following features:

• Latest subway routes: As of 2019, Xi'an has a total of 4 subway lines, and the app will update accordingly based on the actual situation.
• Optimal transfer routes: The app monitors the real-time operation status of the subway (whether it is smooth or congested) and provides recommended optimal transfer routes, along with information on travel time, fare, and distance.
• Convenient route sharing: Users can save the results of route queries as text or images locally, or share them on third-party platforms.
• Route/station bookmarking: Users can bookmark transfer route query results and favorite stations.
• Detailed station information: The app provides information on the first and last train times, station facilities (such as restrooms and elevators), and entrance/exit details.

The app covers the following subway lines: Line 1, Line 2, Line 3, and Line 4.

Please note that the app is still in the development stage and some details may not be fully perfected. Users are encouraged to provide feedback and suggestions to the developers via the contact email: