Get used to seeing the same 30 faces and get used to running into them at Waitrose every Saturday, even after they turned you down.
You can filter by various categories, but fundamentally, the nearer they are the more you will see them.
Grindr, fundamentally, is based around location: men appear in order of descending proximity and everything else goes from there. Grindr sets up the basic template of how all gay dating is or isn’t: everything is reactive to Grindr whether it wants to be or not, so if you like or dislike this app is going to formulate where you go from here.