Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
Stealthy: Secret Messenger - Chat anonymously with friends & strangers
Carrd - Simple, responsive one-page site creator.
Berkanan - Chat with people nearby. Even offline, on an ✈️.
Avochato - Text messaging for your business.
Roundio - Explore what people posted to Instagram or Flickr near you