Botletter is a similar service as Mailchimp, but instead of using emails we use Facebook Messenger.

Free online survey tools & market research software from SurveySparrow - turn your boring feedback surveys into engaging conversations. Create surveys, now!

Storyline makes it easy for non-tech people to create, test, and publish complex voice applications in minutes, using templates and visual mind-map interface. There is no need to code anything or setup servers. It’s like a Squarespace for voice apps.