With more than 300 million active users, WhatsApp is one of WeChat's biggest competitors. Developed by two ex­Yahoo employees in 2009, WhatsApp originally focused on text chats, but on Aug. 6 it also started push­to­talk service. It's noted for its accessibility, ease of use and the absence (没有) of adverts. The service is free for the first year, after which D|S0.99 (6.06 yuan) is charged for a one­year subscription.

　　Kakao Talk (South Korea)

　　Users: more than 100 million

　　Platforms: Android, iOS, Windows Phone, BlackBerry and Bada (an operating system developed by Samsung)

　　Features: text chats, group chats, push­to­talk, group calls, file sharing

　　With more than 100 million users in more than 230 countries, Kakao Talk is a multi­platform (多平台) texting application that allows users to send and receive messages for free. With Kakao Talk, users can message each other one­on­one or in group chats with unlimited numbers of friends. You can also choose from more than 250 animated emoticons and share them with friends.

　　Line (Japan)

　　Users: more than 200 million

　　Platforms: Android, iOS, Windows Phone, BlackBerry and PC

　　Features: text chats, group chats, push­to­talk, file sharing, location sharing, gaming, stickers

　　Line tops the list of the most downloaded free apps in 52 countries. Apart from text and voice messaging, Line provides its users with more than 250 original stickers and emoticons to buy from its own shop. In the first quarter of 2017 alone, it made D|S17 million just from stickers. The popular app also allows friends to battle each other in the Line games.

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