![]() The company makes part of its revenue from a commission on gifts which users can send to friends via Kakao. The application is free to download, and sending and receiving material in wi-fi zones is also free.Įven outside the zones it is relatively cheap because it uses a mobile data payment plan rather than phone company connections such as SMS. Many Kakao devotees say they have stopped sending Short Message Service (SMS) texts since they downloaded the app, which allows users to send messages, pictures, soundbites and even video via the Internet. "Almost everyone I know uses the service, and it's so economical that now I can't imagine how I'd keep in touch with so many friends without it," said Hwang, 21. Kakao Talk, a mobile messenger smartphone application, has enjoyed phenomenal success since it was launched 16 months ago and has spawned similar apps in the world's most wired nation.
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