What are some alternatives?
When comparing Botfuel and Conversation.one, you can also consider the following products
Conversational Form - Turning web forms into conversations. By SPACE10
Dialogflow - Conversational UX Platform. (ex API.ai)
Botpress - Open-source platform to create, manage and extend bots
Tars - TARS enables users to create chatbots that replaces regular old webforms.
Chatfuel - Chatfuel is the best bot platform for creating an AI chatbot on Facebook.