There are apps for just about anything, including gay dating apps such as Grindr and Hornet. There appears to be a potentially dangerous problem with some though, as they can be hacked to reveal the user's rather precise location (whether they want it or not).
While that might not initially sound like a huge issue (presumably you want to meet someone at some point), a little thought can see where this may lead.
WiredAnd unlike previous methods of tracking those apps, the researchers say their method works even when someone takes the precaution of obscuring their location in the apps’ settings. That added degree of invasion means that even particularly privacy-oriented gay daters—which could include anyone who perhaps hasn’t come out publicly as LGBT or who lives in a repressive, homophobic regime—can be unwittingly targeted.