You can sign up as if it's a normal social network, even logging in via a Facebook account - or log in 'to meet new people.
Additionally, users may pay to be introduced to a larger number of people for their profile to be given more prominence on the site for a limited time.
The site is keen not to be seen as a subscription-based dating site - instead, basic features are available for free, but others are paid for - the 'freemium' model used by services such as Spotify Users create their own profile including where they want to meet new people, individuals can then chat with one another and choose to meet.
Badoo is 'not a dating site' - but the social network 'for meeting new people' seems to work rather similarly to one.
It's based in London, but is owned by Russian entrepreneur Andrey Andreev.