The number of total downloads lies between 90,000 and 310,000.
The figure would be higher if we counted already deleted apps.
On top of the countless mainstream sites, there are specialized ones to help you find someone with the same religion, interests and sexual preferences -- whether you're seeking a friendly relationship, life partner or a one-night stand.
There are serious pitfalls to avoid, of course: dodgy sites, "catfishing" and, worst of all, online predators.
The synthesis of modern technology and romance is a hot topic these days, with services like Tinder drastically changing how people look for love.
The theme was open-ended enough to allow us to integrate a number of different services, and made us laugh enough to think that it might go down well at the hack.
News Labbers Alex Norton, Lei He and Rachel Wilson teamed up with colleagues Dario Ramalho (BBC News UX&D) and Shane Kelly (my BBC) for the two-day IBM Watson Build a Bot hack. Create a prototype using Watson Cloud Service technologies that innovatively solves a real-world problem. Judges marked bots on three criteria: All coding took place during the competition, and teams were expected to present a working prototype at the end of the second day. Lei He and Alex Norton share their views: In coming up with an idea, we knew we had to be realistic about what we could complete in the short amount of time available.
We wanted to build a bot using a number of different Watson and partner services, as this was one of the marking criteria.
We have also confirmed that another type of well-known fraudulent application–bogus adult dating services–are increasing on Google Play.
Mc Afee Mobile Research monitors adult one-click-fraud applications on Google Play that are targeted at Japanese users.
Although the attackers appeared to have stopped uploading these apps in May, they have now resumed the attacks.
We chose to make a bot for Facebook Messenger because of the number of people using the platform (it crossed the one billion mark this summer) and its carousel feature for displaying sets of different links.
This let us aim at a large target audience and gave us features which could be easily manipulated under the table at a restaurant.
The oldest dating site that's still around is Matchmaker, which started as a dial-up BBS in 1985 and ran on a Radio Shack TRS-80 with modems (above).