Top Five Apps Most Frequently Used by Netizens in 2016 0% 20% 40% 60% 80% 100% WeChat 79.6% 60.0% QQ Taobao 24.1% mobile Baidu 15.3% Alipay 14.4% Source： Statistical Survey on Internet Development in China 2016.12 Figure 51 Top Five Apps Most Frequently Used by Netizens in 2016 II. The Development of Basic Applications 2.1 Instant messaging Up to December 2016, China had 666 million users of instant messaging, accounting for 91.1% of the total netizen population and representing an increment of 42.19 million from the end of 2015. In particular, users of mobile instant messaging reached 638 million, constituting 91.8% of mobile netizens and recording an annual increase of 80.78 million. 58 The 39th Statistical Report on Internet Development in China