Badoo is not only the largest, but also the fastest growing social network for meeting new people ...

If you're single and frustrated that no-one around you is chatting you up because they're all playing with their phones, then fear not! The smartphone app uses GPS to find people near you.

"When you go into a coffee shop, the first thing that you notice about someone is their physical appearance. If you are drawn to them, you engage in conversation, you look for commonalities, which help establish trust, so things such as mutual friends, mutual interests are good starting points for that." "He didn't get the message" But not everyone has had such a positive experience.

Kezia (not her real name) started using Tinder about a month ago, after going on more than 20 dates in the last five months via a free online dating website, OK Cupid.

"What they choose to do with that relationship is entirely up to them." Competitive market But it's not the only app of its kind on the market.

Gay men have long been using similar sites like Grindr.

"And obviously Tinder is all about the photos." "What was different about it was that on OK Cupid you'd normally exchange quite lengthy messages, that's the kind of genre, so by the time you've met up you know quite a bit about them..just kind of know a bit too much." She went on a date that she describes as "more like a real-life interaction" and "more like meeting someone at a bar or at a party" - though the second date didn't go well. () Facebook founder Mark Zuckerberg has launched a new project aimed at bringing affordable Internet access to the developing world.

She already had concerns that Tinder was seen by some as a casual sex app, rather than an app for people looking for a relationship. Called Internet.org, the effort brings together leading global technology firms.

It's now "infamous" for being a casual sex app, the current equivalent of cruising.

And Badoo, founded by a Russian entrepreneur in 2006, also uses GPS technology.

"I'd been on a few dates and I'd thought, 'well, these aren't really the right kind of people.' But because Tinder links through Facebook, immediately you think, well, I'm going to like you because we have three or four friends in common and I can stalk you through them and find out more about you." "The app is well-designed," says Alex. ' I mean, it literally is saying 'I am a game.'" Mateen thinks Tinder is popular because it's less artificial than other websites which rely on carefully-constructed profiles.