Happn app is just like you are waiting for a person who will never come in your life. I always looked forward to use this app but this was my mistake. First of all happn is a app which shows the person near by you or just crossed your path. Its really was a great concept. But this is not a healthy app. I used for a month and travel to different places but no one crossed my path. This is because it only shows the person releted to happn. Where I live rarely happn app is known by some people.
So I really feel for now it is not a great app.