Quixey, a search engine for apps, announced $50 million in series C funding round led by Alibaba, the Chinese e-commerce giant. Mobile app search, or app search in general, is what almost every Chinese Internet giant is chasing after as users are moving to mobile and apps are what they visit regularly. Qihoo, a rising power in terms of user penetration, has been well-positioned in the mobile app market. 360 Mobile Assistant, a mobile app for downloading and managing apps ran by Qihoo, claims it is the largest mobile app distributor in China. The company also rolled out a mobile app search service, Leidian.com, for users to explore and manage mobile apps.