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| What matters | 📖 Grammarly | 🦅 QuillBot |
|---|---|---|
| What it does | AI writing assistance for grammar, clarity, tone, and text generation across supported documents, apps, and browsers. | Writing toolkit for paraphrasing, grammar correction, summaries, translation, and research-related editing. |
| Best for | Grammar, clarity, and writing feedback in everyday apps | Rewriting and checking an existing draft |
| Pricing model | Free plan + paid | Free plan + paid |
| Free-plan limits | A Free plan is available. Pro and Enterprise add advanced writing and team features; a Pro trial is temporary. | Free is $0 with paraphrasing up to 100 words in 2 modes, basic grammar fixes, limited humanizing and a limited AI detector. Premium is $4.17 a month billed annually and adds full paraphrasing, unlimited modes, advanced grammar, full humanizing and plagiarism checks. |
| Platforms | Web | Web |
| Key capabilities | Grammar and spelling checks Clarity suggestions Tone guidance AI writing assistance Desktop and browser support | Paraphrasing Grammar checks Summarisation Translation |
| Strengths | Review suggested corrections in context and accept only changes that match your voice and intended meaning. | Paste a draft, compare paraphrases, and check grammar before deciding which edits preserve your intended meaning. |
| Limitations | A Free plan is available. Pro and Enterprise add advanced writing and team features; a Pro trial is temporary. | Free tools have usage and mode limits. Premium expands allowances; plagiarism checking and advanced features depend on the plan. |
| No signup required | Not verified | Not verified |
| No credit card required | Not verified | Not verified |
| Open source | Not verified | Not verified |
| Free trial | Not verified | Not verified |
| Access details reviewed | 2026-10-06 | 2026-10-15 |
| Official pricing / source | Check pricingAccess source | Check pricingAccess source |
| Next step | Explore Grammarly | Explore QuillBot |