e Harmony is another massive player, with 3 million users signed up.
But size isn’t everything – as anyone who has just wrapped up a three-hour swiping session on Tinder will attest.
There are no compatibility filters, so once you’ve filtered by the basics, there’s no way of narrowing it down.
However, perhaps controversially, arguably this is more of a pro than a con – as the saying goes, opposites attract!
A one step Facebook log-in process leads on to a few simple questions (the most obvious – height, kids, whether you drink or smoke), a description and a photo – then you are in. To use the site fully – sending unlimited messages to other members – payment is required.