Grammarly vs QuillBot
A side-by-side comparison to help you choose between Grammarly and QuillBot.
Our verdict
If you need a comprehensive writing assistant with advanced tone and clarity suggestions, choose Grammarly; if your primary need is powerful paraphrasing and summarization at a lower cost, choose QuillBot. The core trade-off is breadth of writing features (Grammarly has tone suggestions and a higher 4.5 rating) vs. specialized rewriting tools and a slightly lower $9.95/mo price. Grammarly excels at real-time grammar and tone in everyday apps, while QuillBot focuses on transforming text through paraphrasing and summarizing. Both offer free tiers, but Grammarly’s Pro is $12/mo and QuillBot Premium is $9.95/mo.
| Grammarly | QuillBot | |
|---|---|---|
| Description | AI writing assistant that checks grammar, clarity, and tone, and generates or rewrites text across the apps you use. | AI paraphrasing and writing suite with rewriting, grammar checking, summarizing, and citation tools. |
| Category | AI writing | AI writing |
| Pricing | freemium · Free tier; $12/mo Pro | freemium · Free tier; $9.95/mo Premium |
| Rating | 4.5 | 4.4 |
| Features | Grammar checkerTone suggestionsPlagiarism checkerAI detectorParaphrasing toolCitation generator | Paraphrase text instantlyCheck grammar and spellingDetect AI written contentCheck plagiarismSummarize long textGenerate citations |
| Website | Visit | Visit |
Choose Grammarly if…
Grammarly is best for professionals, students, and teams who need an all-in-one writing assistant that checks grammar, tone, and clarity across emails, documents, and social media. With a 4.5 rating and features like plagiarism checking and AI detection, it suits users who value polished, professional communication. The $12/mo Pro plan is ideal for solopreneurs and small teams who write frequently and want consistent quality. Its tone suggestions make it especially good for customer-facing roles.
Choose QuillBot if…
QuillBot is ideal for writers, researchers, and non-native speakers who need to rephrase, summarize, or generate citations efficiently. At $9.95/mo, its Premium plan is more budget-friendly, yet it still offers grammar checking, AI detection, and plagiarism checking. The paraphrasing and summarization tools are standout features for those who work with large amounts of text. It’s a great fit for students or content creators who prioritize rewriting over real-time grammar.
Frequently Asked Questions
What is the main difference between Grammarly and QuillBot?
Grammarly focuses on real-time grammar, tone, and clarity improvements across apps, while QuillBot specializes in paraphrasing and summarizing text. Both offer grammar checking, plagiarism detection, and AI detection, but Grammarly has tone suggestions and a higher rating (4.5 vs 4.4).
Which tool is cheaper?
QuillBot Premium is cheaper at $9.95 per month compared to Grammarly Pro at $12 per month. Both have free tiers with limited features, but QuillBot's paid plan is about 17% less expensive.
Can Grammarly and QuillBot be used together?
Yes, you can use them together to complement each other. For example, use Grammarly for real-time grammar and tone checks in emails, then use QuillBot for paraphrasing or summarizing long texts. There is no conflict, but you may double up on some features.
Which is better for paraphrasing?
QuillBot is better for paraphrasing because it offers multiple modes and tone adjustments specifically for rewriting text. Grammarly also has a paraphrasing tool, but QuillBot's is more feature-rich and is its core strength.
Which has better grammar checking?
Grammarly is generally considered stronger for grammar checking, with a 4.5 rating and detailed suggestions for tone, clarity, and style. QuillBot also checks grammar, but it is more focused on rewriting than deep grammar analysis.
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