Yes, both Algo and Zetabot offer a Free Trial.
Pricing for Algo Starts at $25/month whereas for Zetabot Starts at $85/month.
Algo offers several advantages, including Private and secure communication, Doesn't use user data for training, User can delete data anytime, High control over personal information, Customizable personality and behavior and many more functionalities.
The cons of Algo may include a No continuous learning, No public system access, Limited verbosity, No API mentioned. and No data usage for improvement