Neither Todook nor Certainly offers a free trial.
Pricing for Todook Starts at $79/month whereas for Certainly Starts at $2165/month.
Certainly offers several advantages, including Personalised customer support, Reduces wait times, Helps with purchase process, Helps with checkout process, Manages post-sales support and many more functionalities.
The cons of Certainly may include a Not open source, Limited language support, Limited compatibility, No stated confidentiality measures. and No specific privacy data handling