Grammarly vs QuillBot
Grammarly
grammarly.comQuillBot
quillbot.comSide by side
| Figure | Grammarly | QuillBot |
|---|---|---|
| Price from | $12/mo | $0.69/mo |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | — | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| iOS | Yes | Yes |
| Android | Yes | Yes |
| Plans published | 4 | 8 |
| Spec score · AI Writing Tools | 9.2 (#11) | 9.5 (#1) |
| Spec score · AI writing assistants | 9.2 (#2) | 9.2 (#5) |
| Spec score · AI Grammar Checkers | 9.0 (#4) | 9.0 (#5) |
| Spec score · Proofreading Software | 9.0 (#5) | 9.0 (#7) |
| Spec score · Academic Writing Software | 9.0 (#3) | 8.9 (#5) |
| Founded | 2009 | 2017 |
| Free plan | Yes | Yes |
Plans
Grammarly
- FreeFree
- Pro$12 a month
- EnterprisePriced on request
- PlusPrice not published
QuillBot
- FreeFree
- Premium$8.33 a month
- PremiumPriced on request
- Premium$8.33 a year
- Team Plan (51+ seats)$69.95 a year
- Team Plan (11–50 seats)$79.95 a year
- Team Plan (2–10 seats)$89.95 a year
- TeamPriced on request
In their own words
Grammarly
Grammarly is a writing assistant from Grammarly, founded in 2009 and now part of Superhuman. Its listed tools include proofreading, paragraph rewrites, tone suggestions, a humanizer, and AI detector agents. Style suggestions and tone detection are listed, alongside brand voice controls and team collaboration. The Free plan is free and includes 100 AI prompts per month; Pro is $12 a month with 2,000 AI prompts per member per month. Plus is listed at ₹392 INR per member per month when billed annually, and ₹1,000 when billed monthly, and is available only via local payment methods. Grammarly lists 24 supported languages, browser compatibility with Chrome, Safari, Firefox, and Edge, and mobile apps for iPhone, iPad, and Android. Desktop apps and a browser extension are also listed. Grammarly says user content is not sold, monetized for advertising, or used to train third-party models. Its SOC 2 Type 2 report covers security, privacy, availability, and confidentiality controls.
QuillBot
QuillBot is a set of AI tools for writing, communication, design, coding, and collaboration across platforms and formats. Its writing tools include paraphrasing, grammar and plagiarism checking, AI detection and humanizing, summarizing, and citation generation. The Free plan allows paraphrasing up to 100 words in two modes, with basic grammar and summaries plus limited access to humanizing and the AI Detector. The Premium comparison lists paraphrasing in 23 languages and translation into more than 40 languages. QuillBot offers desktop and mobile apps for macOS, Windows, Android, and iOS, alongside Chrome, Edge, and Safari extensions. Its desktop app can appear as a widget in apps including Slack, Notes, and Messages; Premium also lists a Word add-in. QuillBot says one subscription works across its apps and platforms, with Premium usable on up to 10 devices at a time. Team plans add writer-management dashboards and centralized billing, while Team Plan benefits include priority assistance and account-management support. The maker says QuillBot began in 2017 as a paraphrasing tool for English-language learners. The Free plan is available; no Premium price is listed here.