Its approach is quite different to RSVP's however, requiring you to fill out a detailed questionnaire that will let you indicate just what you're looking for in a match.e Harmony then uses 'science' to find you the matches with the highest likelihood of compatibility.
How about finding a dietary partner on Gluten Free Singles, an animal-lover on Date My Pet, or a literary companion on Alikewise?
For those seeking same-sex partners, there's also Grindr for men and Her for women (though the latter doesn't have an Android version up and running yet), although most other dating services allow for same-sex searches as well.
If you want to meet someone with a specific thing in common, there are plenty of niche dating sites popping up as well.
There's Bristlr, the app seeking to connect beard-lovers with their perfect bearded man.
Most online dating services are free at least to try, so there's no harm in jumping into the few that seem the most compelling to you and giving them a go yourself.
No matter which one you try you won't meet people if you don't...Moving on to more modern dating apps (although RSVP and e Harmony have incorporated apps, they are still far more browser-centric services), the most obvious contender is Tinder.Tinder has a very young skew, with 50 per cent of users aged 18-24, 34 per cent aged 25-35 and only eight per cent aged 35-44.There is also a more even split in demographics compared to newer sites, with 48 per cent of users being aged between 26 and 40, and 34 per cent aged between 41 and 60.Using RSVP involves a fairly simple search system, with no 'compatibility' features integrated unless you are a paid member.It isn't without its detractors, however, with many pointing out just how creepy it is to be giving your information to random people you pass in the street.