If you’ve walked past someone in the street you can then flick the heart button and you can start to chat with them.
It's finally a solution to the Sliding Doors problem.
Or, Love Struck – which is new but definitely worth a looksie! If you like someone you can press on the heart button and if the feeling isn’t mutual, they’ll never know.
The twist with Happn is it only includes potentials that you've been near recently.
It was only a matter of time before one of these services was set up.