What are some alternatives?
When comparing Tars and Botfuel, you can also consider the following products
Chatfuel - Chatfuel is the best bot platform for creating an AI chatbot on Facebook.
Conversational Form - Turning web forms into conversations. By SPACE10
ManyChat - ManyChat lets you create a Facebook Messenger bot for marketing, sales and support.
Botpress - Open-source platform to create, manage and extend bots
IBM Watson Assistant - Watson Assistant is an AI assistant for business.