Grammarly vs QuillBot: Honest Comparison (2026)
By Raz Hadas • Last updated: May 11, 2026 • Based on real pricing + 9,250 G2 reviews
Choosing between Grammarly and QuillBot depends on what you actually need from an AI writer. Grammarly, priced at $30.0/month, has a G2 rating of 4.7 based on 9000 reviews and offers a free tier. QuillBot, at $9.95/month, has a G2 rating of 4.4 from 250 reviews and also provides a free tier. Both tools lack long-form writing capabilities. The Grammarly vs QuillBot decision will likely come down to budget and the community feedback reflected in their respective G2 ratings and review counts.
Grammarly
Grammarly Inc.
$30/mo
Free tierAI writing assistant for grammar, clarity & tone
Side-by-side feature comparison
| Feature | Grammarly | QuillBot |
|---|---|---|
| Starting price | Free / $30/mo | Free / $9.95/mo |
| G2 rating | 4.7 ★ (9,000) | 4.4 ★ (250) |
| Free tier | ✓ | ✓ |
| Long-form writing | ✗ | ✗ |
| SEO mode | ✗ | ✗ |
| Plagiarism check | ✓ | ✓ |
| Grammar check | ✓ | ✓ |
| API access | ✗ | ✗ |
| Browser extension | ✓ | ✓ |
| Templates | ✗ | ✗ |
| Affiliate program | ✓ | ✓ |
Pricing comparison
Grammarly
Monthly: $30/mo
Yearly equivalent: $12/mo
Free tier: Basic grammar checks, limited AI
QuillBot
Monthly: $9.95/mo
Yearly equivalent: $4.17/mo
Free tier: 125 paraphrase words/attempt
Verdict
Grammarly is the better choice for users who need a comprehensive proofreading assistant to improve the correctness, clarity, and tone of their original writing. Its higher monthly price of $30.0 is justified for professionals and teams who prioritize detailed feedback on grammar and style. The tool's extensive user base, reflected in its 4.7 G2 rating from 9000 reviews, indicates a well-established reputation for refining existing text and ensuring it sounds polished and professional. It acts as a final check before publishing or sending important communications.
QuillBot is ideal for users whose primary need is to rephrase or restructure sentences and paragraphs. At $9.95 per month, it offers a more affordable solution specifically for paraphrasing, making it suitable for students, academics, and content creators looking to avoid repetition or reword source material. While its G2 rating is a solid 4.4, it is based on a much smaller sample of 250 reviews. QuillBot excels at altering sentence structure and suggesting alternative vocabulary, serving a different core function than Grammarly's focus on error correction.
Frequently asked questions
What is the main difference between Grammarly and QuillBot?
Grammarly is primarily a writing assistant focused on correcting grammar, spelling, punctuation, and style. QuillBot is mainly a paraphrasing tool designed to rephrase sentences, paragraphs, or entire articles. While both tools have overlapping features, their core functions are different. QuillBot focuses on rewriting content, whereas Grammarly focuses on polishing and correcting existing text.
Which tool is better for checking grammar?
Grammarly is more specialized for grammar and punctuation correction. Its algorithms are designed to catch a wide range of errors, from simple typos to complex syntactical issues, and provide detailed explanations. While QuillBot includes a grammar checker, its primary strength and main feature is paraphrasing, making Grammarly the more robust option for proofreading.
Is QuillBot or Grammarly better for paraphrasing?
QuillBot is the superior tool for paraphrasing. Its core purpose is to rewrite text in different ways while preserving the original meaning. It offers multiple modes for rephrasing, such as Standard, Fluency, and Formal, giving users more control over the output. Grammarly has some sentence rewrite suggestions but lacks QuillBot's dedicated and extensive paraphrasing capabilities.
Can I use the free versions of both Grammarly and QuillBot?
Yes, both Grammarly and QuillBot offer free versions with core functionalities. The free version of Grammarly provides critical grammar and spelling checks. The free version of QuillBot allows users to paraphrase a limited amount of text and use a few of its writing modes. Both services also offer premium subscriptions that provide access to more advanced features.