In the west we know Tencent best for its WeChat / Weixin messaging app, although the Chinese company is also heavily involved in the digital music space in its homeland. Now it has invested in another kind of app: Q&A startup Fenda, which Tencent sees as “one of the most important knowledge sharing platforms in China”. The idea is that celebrities and experts join the platform, and people can then pay to ask them questions and get answers by voice message. “Picking the brain of well-known sexologist Li Yinhe will cost you around US$40, but asking [actor] Zhang Ziyi something will set you back almost US$500,” explained TechInAsia. Fenda is essentially a Chinese version of western app Quora, albeit much broader than the latter’s niche appeal to Silicon Valley / tech people. Fenda launched in China in May, and has become something of a craze – albeit one that was shut down for over a month in late summer, reportedly because regulators were clamping down on the platform.