Grammarly vs QuillBot
A side-by-side look at Grammarly and QuillBot — pricing, features and where each one wins. Both are reviewed independently on Curata AI.
| Grammarly | QuillBot | |
|---|---|---|
| Summary | Writing assistant that catches grammar, tone and style issues in real time. | AI paraphrasing, grammar and summarizing suite trusted by 50M+ students, writers and professionals. |
| Pricing | Freemium | Freemium |
| Category | Writing | Writing |
| Platforms | Web, Chrome, Word, iOS, Android | Web, Chrome, Word, Google Docs, macOS, Edge |
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Which one should you choose?
Grammarly
Best for: Writing assistant that catches grammar, tone and style issues in real time.
QuillBot
Best for: AI paraphrasing, grammar and summarizing suite trusted by 50M+ students, writers and professionals.
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Read the full Grammarly review
Grammarly is the writing assistant most professionals already have installed. Beyond grammar, its tone detection, rewrite suggestions and generative features help you sound clearer and more consistent across email, docs and browser writing. It is not a replacement for a chatbot, but it is the safety net that catches what a chatbot writes on your behalf.
Read the full QuillBot review
QuillBot is one of the most established AI writing assistants on the market, best known for the paraphraser that made text rewriting mainstream. Today it's a full writing suite: a paraphraser with multiple tone modes, a grammar checker, a summarizer, a citation generator, an AI detector and an AI humanizer. It integrates directly into Chrome, Microsoft Word and Google Docs, so it sits inside the tools writers already use rather than asking them to switch context. QuillBot is especially popular with students, ESL writers and content professionals who want fast, reliable rewrites without opening a general-purpose chatbot. The free tier is generous enough for casual use; QuillBot Premium unlocks unlimited paraphrasing, longer inputs, more advanced tone modes and priority processing — the plan most serious users end up on.