Dianping’s mobile app had had 150 million users as of the end of June. Users are from 2300 cities and have contributed more than 36 million reviews, according to the company. Monthly active users reached 130 million in the second quarter, an 86% year-over-year growth, shortly after Tencent bought a stake in Dianping and integrated its group-buying service onto WeChat. Dianping expects WeChat, which has users across China, to help the service expand from first- and second-tier cities to lower tier cities. Alibaba is aware of the threat from WeChat in mobile commerce that has blocked access to Taobao webpages within WeChat.