Bumble forces women to initiate contact, which greatly cuts down on the nasty messages from men. http://www.xojane.com/sex/feminist-dating-app-bumble

> The best thing about Bumble is that regardless of who I swipe right on, and who swipes right on me, I easily avoid those horrendous first Tinder messages that ask me for threesomes or whether I like dragons, and if I do, whether I want “these balls dragon” across my face