AI Tools
Grammarly
AI writing assistant.
What it is
Grammarly is the world's leading AI writing partner, helping over 30 million people write more clearly and effectively every day. Beyond just fixing typos, Grammarly uses advanced AI to analyze the tone, clarity, and engagement of your writing. Whether you're drafting an important email, a research paper, or a social media post, Grammarly acts as a real-time coach, suggesting ways to make your message more impactful. Its browser extension and desktop apps ensure you look professional across every site you visit.
Grammarly pricing
Grammarly publishes 2 plans. Paid tiers start at $12/mo, and a free tier is listed alongside them.
| Plan | Price | What the vendor’s page says |
|---|---|---|
| Free | $0/mo | Free $0/month with spelling, grammar, tone and 100 AI prompts |
| Pro | $12/mo | Pro $12/month adds rewrites, tone adjustment, plagiarism and AI detection, and 2,000 AI prompts |
Prices read from the vendor's own pricing page on 2026-09-07. Vendors change plans without notice — check the source before you budget. Source Price verification log.
Key features
Real-time Grammar
Automatically fix spelling, punctuation, and grammar errors as you type.
Tone Detector
Ensure your message is hitting the right emotional note for your audience.
Clarity Suggestions
AI-powered advice to make long, complex sentences easier to read.
GrammarlyGO
Generative AI that helps you draft, rewrite, and brainstorm ideas in seconds.
Strengths and trade-offs
What works well
- Ubiquitous: Works everywhere you write—Gmail, LinkedIn, Word, and more.
- Tone Analysis: Tells you how you 'sound' (confident, friendly, etc.) before you send.
- Plagiarism Checker: Scans billions of web pages to ensure your work is original.
- Ease of Use: The most user-friendly and 'invisible' writing tool in the market.
Where it falls short
- Privacy: Requires access to almost everything you type to be effective.
- Premium Price: The full suite of features is quite expensive for individuals.
- Over-correction: Can occasionally suggest changes that lose your unique personal voice.
Who it is for
Students, Professionals, and Non-native English Speakers.
Pick it or skip it
Pick Grammarly if
- Everyday writing where spelling, grammar and tone checks are enough — that is the free plan
- Writers who want full-sentence rewrites and plagiarism detection, which are Pro
- People who write in English as a second language
Skip it if
- You lean on AI generation — free includes 100 prompts, Pro 2,000
- You need plagiarism or AI-text detection; both are Pro at $12/month
- You are buying for a team: Grammarly does not publish a per-seat business price, only Contact Sales
Our verdict
Free tier handles spelling and tone; Pro ($12/mo annual) adds rewrites and plagiarism checks. Worth it for daily writers, optional otherwise.
Frequently asked questions
- How much does Grammarly cost?
- Grammarly publishes 2 plans: Free at $0/mo, Pro at $12/mo. Every figure is read from the vendor's own pricing page; the pricing section above shows the source sentence for each tier.
- Does Grammarly have a free plan?
- Yes. Grammarly offers a free tier with limits; paid plans unlock higher usage or team features.
- Who is Grammarly best for?
- Students, Professionals, and Non-native English Speakers.
- What are the main drawbacks of Grammarly?
- The trade-offs we noted: Privacy: Requires access to almost everything you type to be effective.; Premium Price: The full suite of features is quite expensive for individuals.; Over-correction: Can occasionally suggest changes that lose your unique personal voice..
- When should you not use Grammarly?
- Skip Grammarly if: You lean on AI generation — free includes 100 prompts, Pro 2,000; You need plagiarism or AI-text detection; both are Pro at $12/month; You are buying for a team: Grammarly does not publish a per-seat business price, only Contact Sales.
What we checked
- Public APIOffers a documented API you can build against.Yes
- Mobile appHas a native app for iOS or Android, not just a mobile website.Yes
- Open source / self-hostableSource is open and the tool can be run on your own infrastructure.No
- SSO (SAML)Supports SAML single sign-on on at least one plan.Yes
“Not checked” means exactly that — we have not verified it, and we do not guess.
Evidence and freshness
Status: Vendor pricing page verifiedReviewed: 2026-09-07
- Grammarly — Plans ↗
Checked 2026-09-07 · Supports: Free $0/month with spelling, grammar, tone and 100 AI prompts, Pro $12/month adds rewrites, tone adjustment, plagiarism and AI detection, and 2,000 AI prompts, Enterprise is quoted by sales; no per-seat business price published
Limit: Vendor pricing page was reviewed; this record is not a ToolCompare benchmark.
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