Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
MediaWiki - MediaWiki is a free software wiki package written in PHP, originally for use on Wikipedia.
Landbot - An intuitive no-code conversational apps builder that combines the benefits of conversational interface with rich UI elements.
TiddlyWiki - a non-linear personal web notebook
Botsify - Ever wonder if you could replace your live chat support system with a chatbot?. Its possible now with Botsify Chatbot For Website.
Confluence - Confluence is content collaboration software that changes how modern teams work