Grammarly is an AI writing assistant that checks grammar, adjusts tone and rewrites sentences inside your browser, desktop and phone apps, for work and school.

Partly. Grammarly has a free plan, with paid plans for more features or usage.

Grammarly: Freemium Writing

What is Grammarly?

Grammarly is an AI writing assistant that checks grammar, spelling, clarity and tone as you type in email, documents and browser tabs. It serves students, professionals and companies, runs on Windows, Mac, iOS and Android, and now belongs to Superhuman, the email company.

Most writing happens outside a word processor: in Gmail, Slack, Google Docs and web forms. Instead of making you paste text into a separate checker, this assistant sits in the apps you already use and underlines problems in place. Beyond corrections, it offers one-click sentence rewrites, tone adjustments and a monthly allowance of generative AI prompts, plus plagiarism and AI-text detection on the paid tier.

Main Features

Flags grammar, spelling and punctuation errors in real time as you type.
Shows how your tone comes across and suggests changes to sound more confident or friendly.
Rewrites full sentences and paragraphs with a single click on the Pro plan.
Includes generative AI prompts for drafting and replying, with 100 per month on the free plan.
Detects plagiarism and AI-generated text against web sources on the Pro plan.
Offers agents such as a Citation Finder, AI Grader, Reader Reactions and a Resume Builder.
Works through extensions for Chrome, Safari, Firefox and Edge, plus Microsoft Office and Google Docs.
Provides desktop apps for Windows and Mac and a keyboard app for iPhone, iPad and Android.

How to Get Started with Grammarly

Create a free account at grammarly.com with your email, Google or Apple login.
Install the browser extension, desktop app or mobile keyboard for where you write most.
Start typing in any supported app and click the underlined suggestions to accept fixes.
Open the AI assistant panel to rewrite a paragraph or draft a reply from a short prompt.

Grammarly Pricing

The Free plan costs $0 and includes basic error checks, tone visibility and 100 AI prompts a month. Pro is $12 per month with sentence rewrites, plagiarism and AI-text detection and 2,000 prompts per member, and Enterprise pricing is by quote.

Who Should Use It?

Students proofreading essays and checking citations before submission.
Professionals writing email, reports and Slack messages that need a clear tone.
Non-native English speakers who want fluency suggestions as they write.
Job seekers polishing a resume and cover letter.
Companies that need brand tones, style guides and SSO across a team.

Grammarly Alternatives

QuillBot: stronger paraphrasing modes and a cheaper suite
LanguageTool AI: better for writing in many languages besides English
Paperpal: tuned for academic manuscripts and journal submissions

Frequently Asked Questions

Is Grammarly free?

Yes, the Free plan checks spelling, grammar and punctuation and shows your tone at no cost, with 100 AI prompts per month. Full-sentence rewrites, plagiarism checks and 2,000 prompts need the $12 per month Pro plan.

What apps does Grammarly work in?

It works in Chrome, Safari, Firefox and Edge through extensions, inside Microsoft Office and Google Docs, in desktop apps for Windows and Mac, and through a keyboard app on iPhone, iPad and Android.

Does Grammarly use my writing to train AI?

The company states that it does not sell or monetize user content, does not use it for advertising and does not let third-party providers train models on it. Enterprise adds BYOK encryption, data loss prevention and SAML SSO.

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