Grammarly
AI writing assistant that checks grammar, tone, clarity, and style across any app or website.
How the 7.4 was reached
- Quality of output8/10
G2 4.7/5 from 13,357 reviews; AI detection trails Copyleaks (87% vs 95%) and generated text is generic. g2.com
- Ease of use9/10
Free plan needs no account and Pro has a 7-day trial; available on desktop, mobile, browser. grammarly.com
- Pricing value8/10
Free plan; Pro $12 a month billed annually ($30 monthly); Enterprise pricing via sales. grammarly.com
- API and integration quality5/10
Works on desktop, mobile and browser; no public API or integration list shown on checked pages. grammarly.com
- Solves the problem it claims to solve7/10
Broad writing help delivered, but independent reviews find AI text generic and its AI detection evadable. supwriter.com
7.4/10 is the mean of the 5 criteria that apply. Scored on the five-criteria rubric v1, 29 September 2026. How scoring works
Pricing
- Basic grammar and spelling checks
- Tone detection
- Browser extension
- Limited AI rewrites
- Advanced grammar and style suggestions
- Plagiarism checker
- Full AI writing assistance
- Tone and clarity improvements
- Works across all apps
- Everything in Pro
- Centralized billing
- Admin controls
- Style guide and snippets
- Analytics dashboard
- Everything in Teams
- SSO and advanced security
- Custom AI models
- Dedicated support
- SAML and compliance tools
Key Features
- Real-time grammar, spelling, and punctuation correction
- AI-powered sentence rewrites for clarity and conciseness
- Tone detection and adjustment suggestions
- Plagiarism checker against billions of web pages
- Browser extension and integrations with Google Docs, MS Word, and most apps
- AI text generation and chat assistant
- AI Detector and Humanizer tools
Pros & Cons
Pros
- Works seamlessly across virtually every writing surface via browser extension
- Free tier is genuinely useful for basic grammar and spelling
- Tone and clarity suggestions go beyond simple spellcheck
- Well-polished UI and consistent cross-platform experience
Cons
- Pro plan is pricey compared to newer AI writing alternatives
- AI suggestions can feel overly cautious or generic at times
- Plagiarism checker and advanced features locked behind paid plans
- Heavy browser extension can slow down some websites
Grammarly remains the gold standard for writing assistance, offering unmatched cross-app integration and solid grammar correction. However, at its Pro price point it faces stiff competition from newer AI writing tools. Best suited for professionals and students who need reliable, always-on writing polish.
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Jasper
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6.2/10Content optimization platform that grades and rewrites pages to match top-ranking SERP results.
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