WiFi Master (formerly WiFi Master Key) is the world's first and largest peer-to-peer Wi-Fi sharing platform for free WiFi access developed by LinkSure Network. It is a mobile application software that leverages on the sharing economy, cloud computing, and big data in an attempt to provide users with a safe and free Wi-Fi internet connection shared by Wi-Fi hosts around the world. It is also known as a free wifi access app pioneer in China.WiFi Master is operated by LinkSure Network, a mobile internet unicorn company providing free internet and content services. The company's founder and CEO, Chen Danian, was previously COO and co-founder of Shanda.