(Yicai Global) July 18 -- Mr. Dan Grover, former product manager for Internet giant Tencent Holdings Ltd.'s social messaging app WeChat, has left Tencent to join US rival Facebook Inc.
Mr. Grover became an Internet celebrity in China in 2014 when he posted an article presenting his views as a foreigner on the design of Chinese mobile apps.
It remains unclear whether Mr. Grover will participate in the development of chatbot, a software that simulates text-based or spoken conversations, for Facebook's Messenger.
WeChat ranks fourth in global chat apps with 697 million users, coming behind its sister app, Tencent-developed QQ, which has 853 million users. Facebook's WhatsApp and Messenger top the list with 1 billion and 0.9 billion global users, according to data from Statista Inc.