Passfeed was founded in October, 2012 and subsequently launched a location-based social neworking service for smart phone.The core team members are mainly from Europe and the United States. Once launched, the number of Passfeed users amounted to more than one million in three months. After three major revisions, the application functions have been continuously improved. Up to August, 2013, Passfeed registered users have exceeded 10 million. The current valuation has been up to hundreds of millions of dollars.