Did you know that the 1st listing on a Google search gets approximately 33% of that search terms traffic? According to a study by the ad network Chitika, the top listing in Google's organic search results receives 33 percent of the traffic

Yeah, that's like being in Times Square in NYC.

Well being on the home page of a mobile device is akin to having a 1st page listing on Google.

"The new breed of companies are the fastest-growing in history. Uber, Instacart, Alibaba, Airbnb, Seamless, Twitter, WhatsApp, Facebook, Google: These companies are indescribably thin layers that sit on top of vast supply systems ( where the costs are) and interface with a huge number of people ( where the money is)."

If you are building a peer-to-peer marketplace, you should consider whether you should drive traffic through a mobile app.