Bubi Chat - Location based anonymous chatting app
Steller - Everyone has a story to tell. Tell yours with photos, videos, and text.
Stealthy: Secret Messenger - Chat anonymously with friends & strangers
Yarn - Yarn is a package manager for your code.
Roundio - Explore what people posted to Instagram or Flickr near you
Startups Anonymous - Anonymously ask questions and share stories. AA for Startups