What are some alternatives?
Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
Facebook DeepText - Facebook's text understanding engine
tawk.to - tawk.to is a free live chat app that lets you monitor and chat with visitors on your website or from a free customizable page
spaCy - spaCy is a library for advanced natural language processing in Python and Cython.
Zendesk Chat - Zendesk Chat (formerly Zopim) is the fastest way to engage your customers with live chat software.
monkeylearn - Text Mining Made Easy. Extract and classify information from text. Integrate with your App within minutes.