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DoppelSoft
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- Smarter Subway – Korean subway
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Lifestyle - Master Korea's bustling subway system with the Smarter Subway app! This user-friendly app provides real-time arrival data, clear route maps, fare estimates, and more, simplifying your travel in Seoul, Busan, Daegu, Gwangju, and Daejeon. Effortlessly search for stations and routes, personalize your
