Messenger Chatbot is integrated into messaging applications such as Facebook Messenger, WhatsApp, etc. These bots understand what was asked and formulate the response in the way a human would develop it. The focus of these bots is to conduct customer service:
Basically, this is a usual chatbot with its functions integrated into messenger. The biggest advantage of the Messenger Chatbot is that this chatbot is more close and related to the user than a chatbot on your website.