China has WeChat and QQ (though WeChat is way more popular). Both are basically mini OSes at this point, with apps and other third party functionality able to b

China has WeChat and QQ (though WeChat is way more popular). Both are basically mini OSes at this point, with apps and other third party functionality able to be built on top of them. I'm not Chinese, but use both of these apps to stay in touch with Chinese friends and family.