It's basically feminist Tinder: Men are not allowed to message first, leaving it up to the girls to start off the conversation however they see fit.
If the lady doesn't start a convo with a match within 24 hours, the chat disappears forever, providing an incentive to actually make connections with people rather than just playing the "who'll make the first move" waiting game.
This app could basically be renamed "Stalkr," but that doesn't stop it from being a personal favorite of mine.
By turning on your location services, the app shows you people you've "crossed paths with," within one city-block.
Dust, also known as "Cyber Dust" as per the slightly dated demo video above (the design has since been updated), offers "heavily" encrypted messaging not accessible by anyone.
All messages and content sent via the services are automatically turned into "dust" after 24 hours.
Over the years we have seen a quite a few BBM pin sharing services take shape (heck, Crack Berry even had a Pin Exchange app on Facebook that was pretty popular until our facebook developer mysteriously disappeared and our BBM Pin Exchange Forum is always hustling and bustling).