Quillbot vs Grammarly | Which One is Better in 2026?

In 2026, use Grammarly Free ($0) strictly for red-underline spelling and punctuation fixes, and avoid both QuillBot's Paraphraser and Grammarly Pro's full-sentence 'Rewrite for Fluency' buttons on graded college essays. Turnitin now flags AI-paraphrased sentences in purple, whereas using a Step-by-Step proofreading prompt to spot grammar rules while typing your own edits keeps your essay 100% human.