The Seoul Subway Guide and Metro Route Planner is an Android application that provides accurate and up-to-date subway maps, a quick and convenient route planner with travel time and distance information, and an exact trip cost calculator. Developed by Discover Ukraine LLC, this free app is perfect for tourists and locals alike who want to navigate the city with ease.

One of the standout features of this app is the Augmented Reality function, which allows users to find the nearest subway station to them. This feature is incredibly useful for those who are new to the city or who are unfamiliar with the subway system. Additionally, the app provides useful information about routes, prices, and payment options, making it a comprehensive tool for navigating Seoul's subway system.

Another great feature of this app is that it works offline, making it perfect for travelers who may not have access to a reliable internet connection. Overall, the Seoul Subway Guide and Metro Route Planner is a must-have app for anyone traveling to or living in Seoul who wants to navigate the city with ease.