Neither SummarizR nor Backtrack offers a free trial.
Pricing details for both SummarizR and Backtrack are unavailable at this time. Contact the respective providers for more information.
SummarizR offers several advantages, including Free of charge, Summarizes multiple formats, One-click operation, Feedback option available, Tailored for education and many more functionalities.
The cons of SummarizR may include a Requires JavaScript, No mobile app, Limited formats supported, No offline functionality. and No user privacy guarantee