Grammarly and QuillBot both help you write better, but they approach the problem differently. Grammarly focuses on catching errors and improving clarity. QuillBot focuses on rewording and paraphrasing. Here's the full comparison.
| Feature | Grammarly | QuillBot |
|---|---|---|
| Primary Strength | Grammar & clarity Winner | Paraphrasing Winner |
| Free Tier | Grammar, spelling, tone | Paraphraser, basic grammar |
| Pro Price | $12/month | $10/month Winner |
| Browser Extension | Excellent Winner | Good |
| Tone Detection | Yes Winner | Limited |
| Plagiarism Check | Yes (Premium) Winner | Yes (Premium) |
| Rewriting/Paraphrasing | Basic | Excellent Winner |
| Summarizer | No | Yes Winner |
| Works In | Everywhere (browser-wide) Winner | Web app + extension |
| AI Writing | Full AI drafting (Premium) | Co-Writer feature |
Use Grammarly if you want a writing assistant that catches errors everywhere you type and improves your tone and clarity. Use QuillBot if you primarily need to rephrase content, avoid repetition, or summarize long text. Many writers use both.