Letstalk IM
Letstalk Technology Limited
Letstalk
카카오톡 KakaoTalk
Kakao Corp.
Signal - 안전한 메신저
Signal Foundation
라인 LINE
LINE (LY Corporation)
WeChat
WeChat International
imo - group video calls
imo.im
Google 메시지
Google LLC
Zalo
Zalo Group
Google Chat