Its alright!

This app does what it should. It shows you the metro and lets you calculate routes. What I like is that it does everything offline. This way for sure you dont get actual departure / arrival times. It would be nice to have this as an additional feature. Compared to the free version the ads are gone an you can save routes. The price is acceptable. Annoying is a small bug in the map itself. On line 1 between yongsan and Seoul stn is the stop namyeong as well. Please correct that.

Fritzn about Seoul City Metro - Seoul, South Korean Subway Guide, v1.2