Neither Prewrite nor Sassbook offers a free trial.
Prewrite is designed for and Small Business.
Sassbook is designed for Medium Business and Small Business.
Pricing for Prewrite Starts at $9.99/Month whereas for Sassbook Starts at $32.50/Month when Billed Yearly.
Some top alternatives to Prewrite includes Sassbook, Arc Studio Pro, Sketch, AI Magic Writer, Qualified, StudioBinder, Workvivo, Screenwriting Dashboard, CutToPlan, Maveny and Scrilys.
Some top alternatives to Sassbook includes ProWritingAid, Linguix, WritingAssistant, Ginger, TLDR This, Easy-Peasy.AI, AI Assistant for Wordpress and AI Alfred.