But too many filters and rigid check-boxes can have you dismiss huge numbers of people at once – something that apps like Bumble, Happn and Tinder tried to do away with (though that brings its own set of issues).

One 5ft 10in friend reports she saw only 400 potential men to browse when she logged in to

There are no compatibility filters, so once you’ve filtered by the basics, there’s no way of narrowing it down.

You can’t browse pictures or profiles – you wait to be matched by the mystery algorithm after answering the 400 questions – then you are guided through a contact process.

Some may think it lacks the spontaneity of other dating sites – and you certainly can’t use it to get a quick date for the weekend.

Some find this a barrier to join, fans say it weeds out the casual chancer from those truly looking for love – and means you don’t have to wait to broach tricky topics.

Pricier – it’s £44.95 for a month, but that drops to £12.95 per month if you sign up for a year.

Too many members with no filter can result in either hours of swiping to find someone you fancy, or hundreds of messages in your inbox that you’ll never have time to read.

Here’s a guide to the sites to check out – feel free to leave your own recommendations in the comments below – and let us know if you met your life partner online or on an app and if so, which one. Has both desktop and mobile site and an app, plus paid-for and free singles events. It’s quite difficult to get any information on the price to use match.com’s full service.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.The price and process mean only the dedicated remain – but equally, can lead to people dropping out mid-process.Controversy swirled in 2010 around its lack of same-sex matching resulting in a site launched later for gay and bisexual daters called Compatible Partners, but e Harmony now offers matching for both mixed and same sex couples from the main homepage.It seems unavoidable that if we have filters and tick-boxes for features and likes or dislikes, we could be cutting off literally thousands of potential suitors because of something we might have thought minor or irrelevant if we met in the flesh.