Businesses or public organizations thus can do CRM, marketing, or even sell goods on WeChat. It is reported that there have been some 3 million such accounts on WeChat. WeChat has been developing APIs for building sophisticated features for public accounts. Founded in December 2012 — a couple of months after WeChat launched the public account system, Weixinhai claims that some 10 thousand clients are added everyday, making RMB30 million in monthly revenue. Now one of their major offerings is WeChat public account development.