I've never heard of Bender? What makes the people on it better? Surely it's the same people?
less people than grindr but you can manually change your location, for example i usually set my location to Westminister so i can chat to fit people around there because Ilford in london is not good at all except this really cute married couple but they aren't looking for hookups..
I shouldn't even be on grindr/bender/gaydar, i've got a fiance. still nothing beats finding teachers on either one of those and teasing them the next day.