Smart Copy offers Free Trial, but Quill.app does not.
Quill.app is designed for Individuals, Freelancers and Small Business.
Smart Copy is designed for Individuals, Medium Business and Small Business.
The starting price of Smart Copy begins at $25/Month when Billed Yearly, while pricing details for Quill.app are unavailable.
Some top alternatives to Quill.app includes Sassbook, Autowriterpro, Smart Copy, Copydue, TypeJust, Qualified, Workvivo, Slick, Writeby and IFTTT.
Some top alternatives to Smart Copy includes ProWritingAid, Linguix, WritingAssistant, Conversion.ai, GoCopy, Copy.ai, Copysmith, Copy Clerk, Easy-Peasy.AI and AI Assistant for Wordpress.