Grammarly vs QuillBot: Which Should You Choose?
Grammarly and QuillBot are both popular choices in AI writing tools. This comparison puts their focus, pricing model, strengths and limitations side by side so you can decide which one fits your work — or whether you need both.
| Grammarly | QuillBot | |
|---|---|---|
| Developer | Grammarly | Learneo |
| Category | AI Writing | AI Writing |
| Focus | Writing & Editing | Writing & Editing |
| Pricing model | Freemium | Freemium |
| Free option | Free plan with limits | Free plan with limits |
| Best for | professional emails, academic writing | rewriting sentences clearly, summarising readings |
| Key features | grammar, spelling and clarity corrections, tone detection and rewrites, generative AI drafting | paraphraser with several modes, grammar checker, summariser |
Strengths and limitations
✍️ Grammarly
AI writing assistant for grammar, clarity and tone improvements.
Stands out for- Works almost everywhere you write
- Excellent for second-language English
- Strong free version
- Many suggestions require Premium
- Can flatten personal style if accepted blindly
🔄 QuillBot
AI writing assistant for paraphrasing, grammar checking, summarizing and rewriting.
Stands out for- Excellent paraphrasing
- Student-friendly
- Free modes
- Paraphrasing still needs original thinking and citation
- Word limits on free plan
Which one should you choose?
Choose Grammarly if you mainly need help with professional emails, academic writing, job applications.
Choose QuillBot if you mainly need help with rewriting sentences clearly, summarising readings, citations.
Both have free options, so the best test is to run the same real task in each before paying.
How to test them yourself in 15 minutes
- Pick one real task you do every week — not a demo prompt.
- Run exactly the same input in Grammarly and QuillBot, twice each.
- Score the results for accuracy, how much editing they need and speed.
- Check the limits of each free plan and what your usual monthly usage would cost.
- Read the privacy settings of both before uploading real work.
Buying checklist for AI writing tools
- Decide whether you need editing (grammar, clarity) or generation (new drafts) — few tools are best at both.
- Paste a sample of your own writing and see whether the tool keeps your voice or replaces it.
- For business use, look for brand-voice settings, team workspaces and plagiarism checks.
- Check whether the tool works where you write: browser extension, Google Docs, Word or mobile.
Keep in mind: Search engines reward helpful, original content, not just AI output. Always add your own experience, facts and editing before publishing.
FAQ
Is Grammarly better than QuillBot?
Neither is better for everyone. Grammarly is strongest for professional emails, academic writing, while QuillBot is strongest for rewriting sentences clearly, summarising readings. Test both with your own work.
Are Grammarly and QuillBot free?
Grammarly: free plan with limits. QuillBot: free plan with limits. Prices and limits change often, so confirm on each official pricing page.
Can I use Grammarly and QuillBot together?
Yes. Many people use one tool for drafting or generating and another for checking or finishing. Avoid paying for both if they do the same job for you.