Tokyo Subway Route Planner is a free Android application developed by MIIN. As the name suggests, this app helps users find routes for traveling from one location to another in Tokyo city using Tokyo Metro, Toei Subway, and JR lines.

With this app, users can easily search for alternative routes and get information on the number of line changes and station stops involved in each route. It provides a convenient alternative to finding train routes by looking at maps and station connections.

One of the notable features of Tokyo Subway Route Planner is the ability to view detailed station lists for each train line in Tokyo. Users can even long-press on any station name from the list to see it on maps.

The app interface is available in both English and Japanese languages, making it accessible to a wider range of users. Additionally, this app can work completely offline, ensuring that users can access route information even without an internet connection.