Finally an update
Ive had this app since 2010 and wondered when it would be updated. Havent been to Busan since 2013 but by then I learned the subway pretty well. Regardless, Im glad this isnt one of the few apps anymore that I have that hadnt been updated for the iPhone 5/6 screens.
...David about
Busan City Metro - South Korean Subway Guide, v1.2.0