Naver Maps app: https://play.google.com/store/apps/details?id=com.nhn.android.nmap&hl=en_US&gl=US
https://apps.apple.com/us/app/naver-map-navigation/id311867728
KakaoTalk app: https://play.google.com/store/apps/details?id=com.kakao.talk&hl=en_US&gl=US
https://apps.apple.com/us/app/kakaotalk/id362057947
KakaoTaxi app: https://play.google.com/store/apps/details?id=com.kakao.taxi&hl=en_US&gl=US
https://apps.apple.com/us/app/kakao-t/id981110422
Papago Translate app: https://play.google.com/store/apps/details?id=com.naver.labs.translator&hl=en&gl=US
https://apps.apple.com/us/app/naver-papago-ai-translator/id1147874819
SENTBE Overseas Money Transfer app: https://www.sentbe.com/en/?source_country=KR
Seoul and Gyeonggi Subway map: http://www.seoulmetro.co.kr/en/cyberStation.do?menuIdx=337
Korea National Railway Tickets: https://www.letskorail.com/ebizbf/EbizbfForeign_pr16100.do?gubun=1
SRT High Speed Rail Tickets: https://etk.srail.kr/main.do?language=EN
Global GMarket Shopping: http://global.gmarket.co.kr/Home/Main
Korea National Pension Service: https://www.nps.or.kr/jsppage/english/scheme/scheme_04.jsp
KoBus Express Bus Tickets: https://www.kobus.co.kr/main.do
BustaGo Intercity Bus Tickets: https://www.bustago.or.kr/newweb/kr/index.do