KakaoTalk is a popular messaging app developed by the South Korean company Kakao Corp. Launched in 2010, it allows users to send text messages, make voice and video calls, and share multimedia files. The app is widely used in South Korea and has gained a significant user base in other countries as well. In addition to basic messaging features, KakaoTalk offers various services such as KakaoPay for mobile payments and KakaoStory for social networking. The app also includes fun features like stickers and games, making it a versatile platform for communication and entertainment.