Dennis Crowley

Find and delete old (embarrassing) tweets

Compete with friends based on the places you go

Collect and share travel recommendations from friends.

Play the $1.5B Powerball on your phone w/ Bitcoin (NY only)

Turn every day into a game

Places you’ll love, without having to look at phone

Does he have the intensity and desire to win a BMX race

Right sized cosmetics for women

Sport the new Foursquare in style

Learns what you like and leads you to places you love