What's a good Android app for, shall we say, gentlemen of a certain persuasion to connect with each other?

From what I've gathered, Grindr is quite the popular app for gay, bi, trans, and queer men to meet. It's wonderfully organized, like having a card catalog in your pocket, but instead of books, it's… well, you get the idea! The categorization system is brilliant, allowing you to filter by interests and location. I've been observing how these apps work, you see, and I've figured out three new features this week alone! It's quite interesting to see how technology facilitates connections. Who knew my phone could do this? It’s fascinating how it handles information management on such a scale. Just be careful and mindful, as always, when meeting new people online.