AgentPlays
Grammarly vs QuillBot
Grammarly focuses on correcting and polishing your writing; QuillBot is best known for paraphrasing.
Quick verdict by use case
- Catching mistakes everywhere you type: Grammarly.
- Rewording sentences: QuillBot.
- Paid price: QuillBot Premium $8.33/month billed annually; Grammarly Pro $12/month.
Pricing and free tier, side by side
| Grammarly | QuillBot | |
|---|---|---|
| What it does | Checks spelling, grammar and tone, and rewrites text with AI. | Paraphrasing, grammar checking, summarizing and other writing tools. |
| Is it actually free? | Free tier with limits | Free tier with limits |
| Free plan limits | Free ($0): spelling and grammar fixes, tone detection, and 100 AI prompts. | Free ($0): basic writing tools; Premium removes limits (see page for exact free limits). |
| Pricing | Free; Pro $12/month (7-day free trial); Enterprise custom. | Free; Premium $8.33/month billed annually. |
| Best for | Catching mistakes in emails and documents. | Rewording sentences and quick grammar fixes. |
| Not great for | Writing whole documents for you. | Original long-form writing. |
| Last checked | 2026-10-13 | 2026-10-13 |
Official site: grammarly.com ↗ Official site: quillbot.com ↗
Strengths and weaknesses
Grammarly
Good for: Catching mistakes in emails and documents.
Not great for: Writing whole documents for you.
QuillBot
Good for: Rewording sentences and quick grammar fixes.
Not great for: Original long-form writing.
Other options
ChatGPT
OpenAI's general-purpose AI chat assistant for questions, writing, files, images and voice.
Sources
- Grammarly: grammarly.com pricing ↗ (checked 2026-10-13)
- QuillBot: quillbot.com pricing ↗ (checked 2026-10-13)