Grindr allows gay and bisexual men to meet up with like-minded men nearby. Profile creation is a fairly minimal experience, focusing on a profile pic, user name, and a few simple questions, and choosing a "Tribe" that describes your type, and then you're up finding other users and chatting them up in minutes.
Grindr is free to use and advertisement-supported, but the premium version, Grindr Xtra, offers ad-free browsing in addition to other features like adding multiple Tribes and advanced search filters. One notable downside? Unlike other dating apps, push notifications for messages require Grindr Xtra.