Grammarly vs QuillBot
Grammarly and QuillBot side by side: what each one is, what it costs to start, and whether you can try it free. Everything below comes from the vendors' own sites and other public sources, not from hands-on testing.
At a glance
| Grammarly | QuillBot | |
|---|---|---|
| Category | Writing & Copy | Writing & Copy |
| Starting price | Free; paid plans from $12/mo (checked October 2026) | $8.33/mo (checked October 2026) |
| Free tier | Yes | Yes |
| Profile | Read profile | Read profile |
Prices are in US dollars unless shown otherwise. Confirm the current price on the vendor's site before you buy.
Key differences
Both list a free tier, so you can try each before paying.
QuillBot has the lower starting price ($8.33/mo against $12/mo for Grammarly). The cheapest plan rarely has the same limits or features, so compare plans before choosing on price.
Both are in our Writing & Copy category.
About each tool
Grammarly
Writing assistant that checks grammar, spelling, tone and clarity and suggests rewrites in a desktop app, browser extensions, mobile apps and integrations.
Who it is for
Individuals and teams who write in email, documents, chat and on the web and want automated writing suggestions. Pro adds team features such as style guides, brand tones and analytics, and Enterprise adds admin and security controls.
Strengths
- Free plan at $0 with 100 AI prompts per month
- Listed integrations include Google Docs, Microsoft Word, Gmail, Outlook, Slack, Salesforce, PowerPoint, LinkedIn, Microsoft Teams, Google Sheets, Zendesk and Jira
- Desktop apps for Windows and Mac, browser extensions for Chrome, Safari, Firefox and Edge, an Office add-in, and iPhone, iPad and Android apps
- Writing support in more than 20 languages
- Enterprise adds SAML SSO, SCIM, BYOK encryption and data loss prevention
Limitations
- The free plan has no tone adjustment, full-sentence rewrites, plagiarism or AI-text detection, or team and security features
- Pro lists 1 style guide, 1 brand tone and 2 user groups; unlimited of each are listed under Enterprise
- Enterprise has no public price (contact sales)
- Grammarly says Pro is being rolled out gradually and is not yet available to every customer type, for example Business and Education customers
QuillBot
Writing tool with a paraphraser, grammar checker, summarizer, AI detector and translator. Free plan with limits; Premium is $8.33 a month billed annually.
Who it is for
People who draft or revise text, such as students and professionals, and groups of five or more who buy shared seats through the Team plan.
Strengths
- Premium paraphrasing has no word cap and includes custom modes
- Translation into 40+ languages, paraphrasing in 23 languages and grammar correction in 6
- Premium works on up to 10 devices at a time
- Payment by card or PayPal, and a subscription can be paused from the Account page
Limitations
- Free paraphrasing is capped per input and limited to two modes; QuillBot's own pages give 100 and 125 words
- Free summaries are capped at 1,200 words, against 6,000 on Premium
- Premium lists plagiarism prevention at 25,000 words a month and up to 50 paraphrases of history a month
- Prices can change at checkout by region and local currency
