Happn app is a dating app matches couples to each other, they are starting their love journey, blah, blah. These type of concept is old model, do you think it works well l think it's the worthless timepass app ever. Just think yourself if someone is not having internet connection on that time, they won't get match. If you are in a big city than it's useful to you but if you are in a small town like me then you may need to struggle with this app to find your decent match.
Afterall in my case it's a useless time pass app. Feel free to download yourself and try to find match. Good luck.