WritingAssistant offers Free Trial, but Lightkey does not.
Lightkey is designed for Individuals, Large Enterprises, Medium Business and Small Business.
WritingAssistant is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Lightkey Starts at $39.95/User/Month whereas for WritingAssistant Starts at $1.99/Month.
Some top alternatives to Lightkey includes ProWritingAid, Linguix, Grammarly Business, WritingAssistant, Writer, TextWizard, Ginger and Copylime.
Some top alternatives to WritingAssistant includes ProWritingAid, Linguix, Writer, WriteMe.ai, Ginger, Enwrite, PerfectEssayWriter.ai and Easy-Peasy.AI.