Hey Vina is free, only available on iPhone and launched in San Francisco and New York in early February. I downloaded it to see what the fuss was about. Its a lot like Tinder: you swipe left for no and right for yes on peoples profiles.

How old do you have to be to use hey Vina?

WHO CAN USE HEY! VINA? Hey! VINA is made for self-identified women over the age of 16+ who would like to connect with other women in their area for platonic friendships.