Traditional heterosexual dating apps have a fatal flaw: women get flooded with low-quality messages – at best vapid, at worst boorish – to the point where checking the inbox becomes an unappealing chore. Partly as a result, men see most of their messages ignored. Nobody is happy, but nobody can do anything about it. Well, none of the users, individually, can. But a new generation of dating apps impose limitations on daters that might liberate them.