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
Chatfuel - Chatfuel is the best bot platform for creating an AI chatbot on Facebook.
LiveChat - LiveChat - premium live chat software. Approach customers directly on the website, make connections and drive more sales using LiveChat.
Landbot - An intuitive no-code conversational apps builder that combines the benefits of conversational interface with rich UI elements.
Crisp Chat - Multi-channel customer support software
ChatBot - Easy to use chatbot platform for business