The experiment was based on two created profiles on Tinder - one for a woman and one for a man.

Tinder is a location-based dating application that you connect to via Facebook that facilitates communication between mutually interested users. It works for example by a guy shows interest in a girl, who at the time does not see anything. The girl does not receive any notification that she has been  "liked" by this guy, but rather she will see his profile and get the chance to either "like" or "dislike" the guy. If she likes his profile, then they get something called a "tinder-match." After the match, it appears a chatbox between them, and from there one need to take the first step.

They basically liked the same amount of profiles but the outcome was totally different, and honestly as a girl, it's very shocking to see that. They liked a total of 500 profiles in a row for the respective Tinder profile that they created to see this difference.

See how the experiment turned out in the clip below: