Relationship apps I noticed that relationship apps usage is increasing day by day, like Tinder, Happn and others. Relationship apps have some pros and cons because they make easier to meet somebody like you that's not in your social circle, but in other hand, some people cheat or fool just to have a night of sex. I'm not saying that those cases don't happen if you meet some people not using an app, but, when you meet a person, you usually know the character and if this person is in a relationship or not.