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Apps

📱 Install these before you lose Wi-Fi

Five apps cover 90% of visitor friction. Download on hotel Wi-Fi the night before you fly, or at ICN before you leave the terminal.

Naver Map or KakaoMap — why Google is weak. Download offline Seoul.
Kakao T — taxis. setup.
Papago (Naver) camera translation is built for Korean menus. Google Translate is a backup, not the lead.
Korail if you ride KTX. Discover Seoul only if you bought that pass. Skip random “Korea SIM” clones that are ads.

Need a Korean phone number for some signups. eSIM data is enough for maps and Kakao T; SMS-heavy apps may still fail. eSIM.

Wi-Fi → eSIM →