uLouder - Modern Craigslist and Nextdoor for urban nomads
Sporty - Beautiful app for creating/joining sports activities nearby
Explore nearby places for Airbnb - Discover must-see places when browsing Airbnb (Chrome ext)
ATLETO - Connecting everyday athletes
Whereabouts - Write posts and chat (group or 1-on-1) with people nearby!
Happy Things - Simple, daily activities to increase your happiness