I would focus on helping them find things to do in their city, friend-match based on that, and encourage repeated hangouts. Why? 1. People usually make friend

I would focus on helping them find things to do in their city, friend-match based on that, and encourage repeated hangouts. Why? 1. People usually make friends through engaging in common interests. This takes time. 2. Building a business takes time. Selling tickets to local events and products/coupons to local small businesses gives you have a sustainable revenue model whose incentives are aligned with your mission. 3. You could easily expand into being a dating app for married couples who are bad at planning date nights.