oratio Automate - Automatically chat with customers on Messenger, Viber & more
UseResponse - Open-source, self-hosted customer feedback software, live chat and helpdesk system that you can install on your server. Organize documentation using knowledge base and get feedback from social networks with centralized system
ShopBot - Cart recovery messages via FB Messenger
UserVoice - UserVoice integrates easy-to-use feedback, helpdesk, and knowledge base management tools in one platform that empowers users to speak and companies to understand.
BugPlug - Quickly capture feedback and bugs from your team, clients, and users with our on-site widget.
Survicate - Collect feedback on your website and find out more about your visitors.