Although the company has initiated a doubling down on mobile, the experience of users like Riccardo might suggest another path to profitability. The almost decade-old Couchsurfing, which is available in 100,000 cities across the globe, is becoming the go-to hookup app for a certain class of young world travelers.“My first Couchsurfing hookup happened when I was staying with my friend in Miami,” Riccardo recalls. Months later Riccardo got a phone call from the same girl, asking if she could stay at his place in New York City. “I never talked to her again,” he admits, adding, “I mean, we’re friends on Facebook.” Couchsurfing was born after a budget-conscious traveler named Casey Fenton sent out a mass request for accommodations in Iceland and received 50 invitations from students with a free spare futon.“He has a studio and was hosting two girls from France.” He slept on an inflatable air mattress with one girl, while his friend shared his bed with the other. Fenton soon realized people all over the world might not mind sharing their extra space gratis while making new friends in the process.Riccardo G.’s profile on Couch Surfing.com, the website that partners intrepid wanderers with willing hosts, notes that he lives in the “best neighborhood to go out and have drinks,” that he offers a “cozy/clean/nice sofa/couch” and that he’ll even let you bring your “small dog, if you just can’t live without him.” He describes himself as “amazing, outgoing, funny, smart” and says his interests include friends, eating, drinking, the gym and puppies.His photos show the good-humored Latin American native — dark, handsome, and fit — in exotic destinations around the world, from Cairo to Capri.