What are some alternatives?
When comparing Microsoft Bot Framework and Chatfuel, you can also consider the following products
Botpress - Open-source platform to create, manage and extend bots
Bitrix24 - Bitrix24 is a free (for small businesses) social enterprise platform. It is a united work space which handles the many aspects of daily operations and tasks. Create your own social intranet in minutes!
Dialogflow - Conversational UX Platform. (ex API.ai)
Marketing 360 - Marketing 360® is a powerful marketing and website platform built for any size brand. It's fully managed and has everything a brand needs to drive beautiful marketing and sales.
Amazon Lex - Harness the power behind Amazon Alexa for your own conversational apps.
EngageBay - EngageBay is an affordable all-in-one marketing, sales CRM and service helpdesk software for growing companies to acquire, engage and nurture web visitors to happy customers.