Facebook Messenger Platform Websites
manychat.com
Visual bot builder for Facebook Messenger with broadcasts, analytics, scheduled posting and many other features!
4,123 
$ 3,460,320.00
engati.com
Engati is the best free chatbot platform to build bots. Build once and publish on messenger, whatsapp, twitter, telegram, skype, slack and website.
182,107 $ 60,600.00