Yes, both MetaDialog and Feynman offer a Free Trial.
Pricing for MetaDialog Starts at $29/month whereas for Feynman Starts at $24.99/month.
MetaDialog offers several advantages, including Supports on-premises deployment, Prioritizes data privacy, Complies with data security, Automates customer support conversations, Provides multilingual support and many more functionalities.
The cons of MetaDialog may include a Complex customization requirements, Possible scalability issues, Training needs up-to-date data, Limited to business use. and On-premises deployment complexity