An app for dating when he and she are nearby - is there such a thing?

Question

Mobile devices

A guy or a girl who wants to get acquainted enter their parameters and parameters of the search object into the app (for example, 20-30 years old, blond / ka, I’m looking for 25-35, brunette / ka without chu). After that, at any time when a pair of hearts of suitable parameters are at a distance of less than 200 meters, both receive an alert with a photo and a map with the position of a potential object of desire on it - go, don't be shy, get acquainted, he/she doesn't mind.
Are there such apps? And if not, what prevents them from appearing?

Answer 1

There have been a million of them, and there will be many more. The idea is a failure. Such applications / devices do not live long.

Answer 2

There is only one for guys.
And so nothing interferes with the creation, the idea is good, but I can’t even imagine how much effort is needed to promote such an application.
Since you only need to launch such a service and set a chapel of 200 meters, you need to run around the city for half a year to find someone.
Another option is to offer the user to choose the distance himself.
Although I already had a couple of options for promoting such an application in my head, but these are just thoughts)

Answer 3

24open.ru has this feature and probably not only them. But as rightly noted above, the idea works so-so.
PS
Choose any area, filter "in active search" and get acquainted - he/she doesn't mind.

Answer 4

sort of like drugvokrug.ru/home will suit you, at least I noticed it among the people in transport