Neither Zenfetch nor DopeDoc offers a free trial.
Pricing for Zenfetch Starts at $15/month whereas for DopeDoc Starts at $3/month.
DopeDoc offers several advantages, including Terminal interface accessibility, Runs on JavaScript, Employs GPT-3.5 Turbo, Interactive Q&A with PDFs, Suitable for researchers and many more functionalities.
The cons of DopeDoc may include a Terminal interface only, Large file size, Requires JavaScript, Depends on document quality. and Variability in tool's effectiveness