Yes, both Ludwig and WordAi offer a Free Trial.
Ludwig is designed for Individuals, Medium Business and Small Business.
WordAi is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Ludwig Starts at $3.99/Month when Billed Yearly whereas for WordAi Starts at $28.90/Month when Billed Yearly.
Some top alternatives to Ludwig includes Gramara, ProWritingAid, Linguix, Grammarly Business, WritingAssistant, Writer, WordAi, Essaybot, Ginger and RytersBlock.
Some top alternatives to WordAi includes ProWritingAid, Linguix, WritingAssistant, Writer, Essaybot, QuillBot, Jasper and AI Assistant for Wordpress.