Fresh out of a long-term relationship, Madison Campbell had an idea.

The 30-year-old tech CEO hadn't been on dating apps much. The last time she was on one, she says, was back in college, long before her most recent breakup last year.

Not sold on the prospect of returning to online dating, she asked her friend − who goes by "Murray Hill Guy" on X − to create and run an account for her on Hinge, a popular dating app.

The idea seemed like a win-win: He could find her a good match and, in the process, gain insight into what it's like being a woman on Hinge. Her expectations were low, but she was interested in how it would play out.

"What we really wanted to see is, what would happen if we downloaded it?" Campbell says. "What would my experience be, even in the first 24 hours? And then, what do guys feel from their perspective as well?"