This is very very similar to an app my Cousin made a few years back called Airendipity (https://www.engadget.com/2013/01/22/airendipity-the-app-that-took-10-day

This is very very similar to an app my Cousin made a few years back called Airendipity (https://www.engadget.com/2013/01/22/airendipity-the-app-that-took-10-days-to-win-my-heart/ https://www.engadget.com/2013/01/22/airendipity-the-app-that...). Looks like it's no longer on the app store. It was, and still is, a fun idea.