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this app is so easy to use it is not a korean app , but you can meet alot of them
anyways this app is basiclly for learning and axchanging languages and cultures you are going to select your own language or the languages that you are good at(select english) and then chood korean language as the second language that you want to learn ,so now you can find plenty of korean people and the best part is you can freely speak english with them .... and i advice you to choose "english" as a native language
....speak with them and ask them for FB or INSTA or KAKAOTALK ID