Stealthy: Secret Messenger - Chat anonymously with friends & strangers
Dollar A Day - Automatically donate $1 a day to featured nonprofits.
Berkanan - Chat with people nearby. Even offline, on an ✈️.
UpEffect - Crowdfunding for social good products
HOLLA - Chatroulette for mobile
eSolidar - Charity shops and online auctions to support great causes